On April 30th, Ma Jiangming took off his protective clothing and rested in the safe passage of a shopping mall in Pudong New Area. Zhongqingbao Zhongqingwang reporter Yan Xueqing/photo

According to the WeChat news of Freezing Point Weekly, on April 28th, 17 "Epidemic Prevention Dabai" in Shanghai were forced to leave Dejinyuan Community in Pudong New Area after receiving wages and subsidies that had been owed for nearly one month. That night, the rain cooled in Shanghai, and they slept under a bridge in a nearby park.

"Epidemic Prevention" is their standard title on the local official attendance sheet. For more than a month, they didn’t know how to define their identity. Nominally, they are called "volunteers" by residents and residents’ committee staff. In fact, they are "migrant workers" in the prevention and control of COVID-19 epidemic in Shanghai, and they are recruited as "epidemic prevention security guards" through security companies and intermediaries.

A number of security guards reported to the reporter of China Youth Daily and China Youth Network that they had encountered problems such as "deceptive recruitment", loss of team leader, and arrears of salary subsidies.

be cheated

More than 10 interviewed players thought they were cheated to Dejinyuan Community.

Zhang lei used to work in Baoshan District, Shanghai. After the outbreak of the epidemic, the factory stopped working. He saw an intermediary named "Yang" posting job information in the recruitment group.

The recruitment information requires that there must be a nucleic acid certificate within 48 hours, and the site management arrangement must be obeyed, so that the community can be unsealed. The conditions are: 250 yuan/day, 12-hour accommodation, and salary settlement. The work address only says "Community near Beicai Town, Pudong New Area".

Zhang lei said that the working hours promised by the intermediary at that time were 3 to 15 days.

Similar recruitment information appeared in large numbers after the outbreak. The reporter saw in a number of Shanghai recruitment groups and odd jobs that in late April, the recruitment information was still maintained at dozens of posts every day, mostly involving epidemic situations: epidemic prevention and security, cleaning, killing team members, volunteers for epidemic control, group buying WeChat group business promoters, and secret transfer security guards.

The so-called "inner perimeter" refers to working in the sealed control area. Zhang lei called specifically to ask whether there were positive infected people in the work area. The other party said that "there is no positive, only secret connection" and asked him for his name and mobile phone number to complete the registration.

Zhang lei bluntly said that he cares about whether there are positive people because they can’t stand the lost working hours after isolation.

"We are migrant workers, and we really came out to work during the epidemic to make money." Zhang lei said that they work in the factory, and the nature of their work is odd jobs. They rarely sign full-time contracts, and they are basically converted into "hourly jobs" through labor agencies, which means that once they stop working, they have no income.

"But the mortgage in our hometown has not stopped, and the elderly and children are waiting to raise, and there are many expenses." Zhang lei said that they can’t be idle.

Ma Jiangming is also concerned about whether there are positive infected people in the workplace when applying for the job. In February of this year, he just came to Shanghai from other places to work, and he heard that Beicai had rushed over to recruit workers.

On March 22nd, Zhang lei and other five people arrived at their residence-Chen Qiao Neighborhood Committee of Beicai Town in Dejinyuan Community. At this time, they learned that Dejinyuan had positive infections in mid-March, and some of them had not yet been transported.

At this point, they can’t actually leave, either wear protective clothing to work or stay in the closed control area. "There must be a door to go out of the community, even if it is out of the community, how to leave Pudong is also a problem."

After the intermediary sent them to the door of the community, they disappeared and the group chat was dissolved. Until now, Zhang lei didn’t know the real name of "Yang", only remembered that the other party was a "young man" and a mobile phone number belonging to Shanghai.

By the end of March, a total of 22 people had stayed in Dejinyuan Community, becoming "the white of internal insurance and epidemic prevention". They live in an activity room on the second floor of Chen Qiao residents’ committee. There is only one spring bed, and the other 21 people play on the floor.

The residence of Dejinyuan "Epidemic Prevention Dabai" in Chen Qiao Neighborhood Committee. Photo courtesy of respondents

Their task in Dejinyuan is to maintain the order of the positive building and nucleic acid detection in the community, dissuade residents who try to get out of the building, and send safeguard materials to the door of the positive infected person.

In the first two weeks, they have to deal with the diverse needs of residents in the community. In the eyes of residents, they are not ordinary migrant workers. "Those of us who wear protective clothing are the nearest epidemic prevention workers".

"At that time, the residents of the community were also very difficult. In addition to making money, everyone wanted to help the trapped residents do something." Team member Zhang Changshun told reporters that he was one of the first people who came to support the community on March 18th. He used to be a security guard in a nearby community and was temporarily transferred to Dejinyuan.

go missing

The salary first went wrong in early April.

The salary of more than 200 yuan for 12 hours is not high in Shanghai. Zhang Changshun said that his original security salary was more than 200 yuan a day, but it was higher than usual to be able to work "even shifts" during the epidemic.

"Working overtime" means going to work day and night. For example, the reporter saw that a recruitment information directly stated that "working overtime" was allowed, 12 hours /200 yuan, 24 hours/400 yuan and 48 hours/800 yuan.

Zhang Changshun, Ma Jiangming and others just arrived, which is called "Lian Ban". Stay on duty for 12 hours in front of the building, with a daily salary of 240-260 yuan; 24 hours on the job, double it. In the early days, two people were in charge of a building, and they could take turns to rest when they were not busy at night.

The form of "continuous shift" lasted for about a week and was cancelled. It was changed to 12 hours a day and 6 hours overtime.

On April 5th in Dejinyuan, the column of overtime hours was changed from 12 hours to 6 hours. The daily attendance sheet is stamped with the official seal of Chen Qiao Resident Committee of Beicai Town, Pudong New Area.

Attendance sheet for epidemic prevention in Dejinyuan, Yishen Security, Shanghai. Photo courtesy of respondents

"This is equivalent to reducing salary in disguise." Zhang lei said that with the outbreak of the epidemic, the number of positive buildings in the community increased. In the later period, there were 14 buildings with positive infections, and there were insufficient manpower. One person looked at two buildings. "The treatment has declined and the workload has increased."

The intermediary promised to pay wages within 15 days. Originally, their attendance and wages were the responsibility of the team leader Chen Yiwei. After Chen Yiwei delayed the issuance many times, on April 26, he suddenly lost contact.

After the news came out, some residents of Dejinyuan were worried.

As the epidemic prevention security guards went to defend their rights, the building was unattended. A resident saw his neighbor living in the closed building go out of his house, worried that the epidemic prevention achievements would be "destroyed once and there was no hope of unsealing", and called on everyone to contribute to solving the wage arrears problem of "epidemic prevention" in the community WeChat group.

"Chen Yiwei’s running must have been thought out early and premeditated." Zhang Changshun said that on April 19th, Chen Yiwei borrowed 1000 yuan money from him, saying that he needed money.

Chen Yiwei is the "biggest spender" in the team. His money is mainly used for "dumping materials" in Dejinyuan.

A number of team members said that Chen Yiwei got milk, coke, sprite, cigarettes, alcohol and other materials, and then sold them to residents and team members at high prices. This kind of materials once belonged to "rare goods" in the closed control area.

Many residents who bought materials from Chen Yiwei kept transfer records. Some residents told reporters that a bottle of alcohol with a market price of more than 40 yuan would cost more than 200 yuan from Chen Yiwei. A daily price of 110 yuan cigarettes, from Chen Yiwei’s hand to increase the price of 100 yuan.

On April 24th, the number of times that Chen Yiwei borrowed money reached a peak, and he kept borrowing money from the team members and some residents of Dejinyuan Community. According to incomplete statistics, nearly 10 players borrowed more than 9000 yuan from Chen Yiwei. The number of loans borrowed by residents is unknown.

Chen Yiwei once borrowed a battery car from Wei, a resident of the community. A team member said that he saw Chen Yiwei "running away by bike". At the same time, Chen Yiwei took away 21 players with a total living expenses of 21,000 yuan.

Since April 26, the team members have repeatedly called Chen Yiwei’s mobile phone number and WeChat, but they can’t get through. Before the press release, the reporter dialed Chen Yiwei’s mobile phone number, and the other party showed that it was turned off.

ask for help

After learning about it, some residents of Dejinyuan also spontaneously called and posted online posts for help and rights protection.

On April 27th, Zhang lei was called to the door by three strangers, who told him to stop making trouble.

Zhang lei and other team members called 12345, 12333, 12348 and other hotlines to report and reported to the police.

After the intervention of Beicai Town Government, two staff members who claimed to be Shanghai Yishen Security Company came to negotiate with them to pay the arrears of wages. One is called Dang Man Min, and the other is Zhuo.

Party Manchu paid 21 epidemic prevention security guards the salary and overtime allowance before April 26th, calculated as 18 hours per day, and asked them to remain on duty.

The players were divided into several groups and received wages and subsidies from the party and the people. Photo courtesy of respondents

They are worried about future problems and hope to sign a written employment agreement. On the evening of April 28th, a new captain came to the community, saying that new personnel would join in and asked the original epidemic prevention security guards to make room. In the end, 17 members including Ma Jiangming left Dejinyuan Community in the rain.

On May 1st, a person in charge of the Chen Qiao neighborhood committee in Beicai Town told the reporter of Zhongqingbao. com that the problems reflected by the "Great White Epidemic Prevention" had been solved, and 17 people left for "transferring posts" and "changing to other communities".

He said that it is not clear whether these "big whites" come from intermediary companies or security companies. "They are all operated from above and have nothing to do with the Jucun Committee." They are only responsible for the reception of personnel after they come in. "Other things don’t matter."

The relevant departments of Shanghai told the reporter of Zhongqing Daily and Zhongqing.com that Pudong New Area has been involved in handling this matter. The reporter asked the relevant departments of Pudong New Area, Beicai Town and Shanghai Yishen Security Company about the situation. As of press time, no response was received.

Zhang lei and others denied "post adjustment".

They can’t rest under the bridge in the park any longer. On April 29, the city management unit inspected. "I heard that someone reported us." Ma Jiang said.

Four of them found a hotel, "beds, 40 to 50 yuan per person a day". The rest are going to stay under the bridge for two days.

Ma Jiang said that it has been raining for many days in Shanghai, and it is difficult to find places where no one lives, such as bridge opening, corridors and underground garages, and so on, until you find a job.

On the evening of 29th, Zhang lei told the reporter a "good news"-he and three workmates "came out of Pudong New Area". They found a taxi with a pass through the introduction of friends with channels. From Beicai Town to Baoshan District, the whole journey is about 38 kilometers, and each person is in 300 yuan. Four people paid the driver a total of 1200 yuan.

Ma Jiangming found a new job through an intermediary. "I still do epidemic prevention and help doctors who do nucleic acid testing’ label’. "He repeatedly confirmed the information to the intermediary, and the intermediary made a guarantee," 400 yuan can have a normal rest one day and at night ".

They walked 3 kilometers to the work place and found that there was no doctor there, only an isolation point under construction. "Let’s build a shed and be cheated again."

That night, they found an underground garage in a shopping mall and planned to spend the night there. When they went inside, they found that it was occupied. There is no one on the second and third floors of the safe passage, where they make a floor and temporarily settle down.

(At the request of the respondents, Zhang lei, Ma Jiangming and Zhang Changshun are all pseudonyms.)

Original title: 17 epidemic prevention security guards in Shanghai were cheated, and now they spend the night under the bridge and in the corridor.

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Guangzhou Winter Solstice New Year’s Eve Food Celebration Reunion At 5: 48: 01 on December 22, 2022, the winter solstice, the shortest day and the longest night, will be ushered in again. During the Zhou Dynasty, the month of the winter solstice was the first month. In the Han Dynasty, the winter solstice was called "Winter Festival". From the Han Dynasty to the Qing Dynasty, the winter solstice was "as big as a year" or "as inferior as a year". The custom of celebrating the winter solstice has influenced to this day. People in Guangzhou celebrate the Winter Solstice with great solemnity, which is known as "the Winter Solstice is a big New Year" and "the fat winter is a thin year". How time flies, no matter how the times change and the weather changes, Guangzhou people spend the winter solstice with a sense of ceremony: the ancestor worship, the sweet and delicious glutinous rice balls, and the steaming stove are all warm and reunion memories written by Guangzhou people. Tracing back to the history of "Winter Solstice", "Winter Solstice" is indeed true in history. Because "year" is the product of calendar, only when the calendar is made can the year be calculated. To calculate the calendar of a year, we must first set a starting point for calculation, called epoch. Legend has it that the Yellow Emperor ordered people to observe the movement of the sun, the moon and the stars, and made the first calendar in China, Huangdi Calendar, with the winter solstice of Jiazi on the eleventh lunar month as the yuan day. From this perspective, there is a winter solstice and then a year, so "the winter solstice is a big New Year". In the Yellow Emperor, November of the lunar calendar was the first month, and the winter solstice was the beginning of the year. The winter solstice was equal to the Chinese New Year. "New Year in Winter", a family dinner with a traditional sense of ceremony, entrusted a beautiful vision of family reunion. During the nearly 800 years of the Zhou Dynasty,The weekly calendar also takes November of the lunar calendar where the winter solstice is located as the first month, and the winter solstice is very grand. "Zhouyi" says: "The first king and even the Japanese closed their doors, and business travel was not good, and they were not provincial." That is to say, during the Zhou Dynasty, on the winter solstice, the frontier fortress was closed, officials did not work, businessmen did not do business, and everyone had a holiday. Secondly, the winter solstice is a solar term, and the 24 solar terms are part of the solar calendar in the lunar calendar, which was originally obtained by the method of "vertical pole surveying", based on the sun. The "year" is derived from the lunar calendar in the lunar calendar, and the first day of the first month of each year is determined according to the cycle of the moon orbiting the earth. The sun is sunny and the moon is cloudy, which can be understood as "the winter solstice is a big New Year". On the winter solstice, the day is the shortest and the night is the longest in the northern hemisphere. In the eyes of the ancients, the winter solstice is the starting point of the transformation of Yin and Yang. After the winter solstice, the days will get longer and the yang will rise, which is a new beginning. This is an important day when the cathode reaches, and the yang will begin to grow. Therefore, Hanshu said: "The sun is the spirit on the winter solstice, and the monarch is long, so congratulations. On the summer solstice, the yin qi rises and the monarch disappears, so I don’t congratulate you. " It is considered that the winter solstice is an auspicious day and should be celebrated. Festivals The Winter Solstice in the Han Dynasty is called the "Winter Festival", and the Tang and Song Dynasties have a seven-day holiday, which is like the Chinese New Year. Now, on this day of the Winter Solstice every year, the online "North-South dispute" begins: Do you want to eat glutinous rice balls or jiaozi? In fact, Chinese’s winter solstice is not just about eating and drinking. The winter solstice has a long history from solar terms to Chinese festivals. In the first year of Emperor Wudi of the Han Dynasty (104 BC), taichu calendar was used, and the first month was designated as the beginning of the year, separating the first month from the winter solstice.But the custom of He Dong still follows. In the Han Dynasty, the winter solstice was called the "Winter Festival". The custom of festivals is similar to that of the Zhou Dynasty. In addition to offering sacrifices to heaven and having holidays, there are also "winter worship" and "winter greetings". "History of Etiquette in the Later Han Dynasty" records: "Before and after the Winter Solstice, a gentleman lived quietly, refused to listen to politics, chose auspicious days and then saved trouble." It can be seen that around the winter solstice in the Han Dynasty, the imperial court stopped government affairs and concentrated on "He Dong". From the Han Dynasty to the late Qing Dynasty, the winter solstice was "as big as the year" or "as small as the year". During the Wei and Jin Dynasties, every winter solstice, the emperor was "congratulated by all nations and hundreds of people … and his appearance was inferior to that of the old dynasty." The solemnity of the "He Dong" ceremony is second only to the New Year celebration on the first day of the first month. Since then, the winter solstice has been known as the "Asian Year". The night before the first day of the first month is called New Year’s Eve, and the night before the winter solstice is called "winter removal". The "Golden Week" in the Tang Dynasty is the winter solstice and the Spring Festival. Emperor Xuanzong of the Tang Dynasty promulgated the national decree "False Ning Order", saying, "Yuan Zheng and Winter Solstice are given seven days off each." For the first time, it is stipulated that the "Winter Solstice Festival" holiday will be extended to seven days, which is also an important manifestation of the prosperity of the "Winter Solstice Festival". The Winter Solstice Festival in the Song Dynasty also had a seven-day holiday, "Winter Solstice is like Chinese New Year". "Dream of Tokyo" has such a record: "November winter solstice. The capital attaches the most importance to this festival. Although it reaches the poor, it is easier to get new clothes, prepare meals and enjoy the ancestors in a year. Officials let go and celebrate exchanges, just like the New Year Festival. " The Ming Dynasty’s "A Brief Introduction to the Scenery of the Imperial Capital" introduced the grand occasion of Beijing’s winter solstice at that time: on the winter solstice in November, a hundred officials of civil and military affairs, He Donghou, wore auspicious costumes for three consecutive days and worshipped each other with red notes, just like the New Year. During the Qing dynasty,The winter solstice is still very grand among the people. Qing Jia Lu is a monograph that systematically records the folk life in the south of the Yangtze River at the age of 18, in which it is written that "the county people attach the most importance to the winter solstice festival" and "the winter solstice is as big as a year." In 214 BC, Qin Shihuang ordered Ren Xiao and Zhao Tuo to unify Lingnan, saying that "books are the same, cars are on the same track, degrees are the same, lines are the same, and places are the same", and the winter solstice originated in the Central Plains took root in Lingnan. During the Tang, Song and Yuan Dynasties, along Zhuji Lane, people from the Central Plains moved into Guangfu several times on a large scale, and the custom of the winter solstice spread further, and it was very grand. In 1956, the report on the Winter Solstice published in Guangzhou Daily recorded that in the old days, Guangzhou people had a set of "rules" full of "Cantonese flavor" for celebrating the Winter Solstice: worshipping ancestors, eating glutinous rice, cooking glutinous rice with preserved meat, killing chickens and ducks and stewing eight treasures (referring to stewing eight rare and precious cooking materials, the specific meaning of which varies with the times and regions). According to the Collection of China Local Records and Folklore Data (Zhongnan Volume), almost all the "folk customs at the age of one year" in Guangdong local chronicles are written around the world to celebrate the winter solstice, and every family in Guangfu area regards it as as as big as a year. Different from the north, the weather in Guangfu is hot and humid in spring and summer, and warm in autumn and winter, and winter can only be truly felt until the winter solstice, so Lingnan people have taken the greatest enthusiasm to welcome the winter solstice: people who have been working in the four places have come home to reunite; The way of eating has also changed from the usual cooking mode of clearing away heat to "a side furnace", which has opened a rare opportunity to make up for winter. In ancient times, the winter solstice was an important day to worship the gods and ancestors.On this day, the emperor will hold a grand ceremony to worship heaven in the suburbs, and the common people will also worship their ancestors and pray for good weather in the coming year, and then sit around and eat, just like a New Year. Therefore, the winter solstice is also known as the "small year". Lingnan literature also talks about the tradition of the winter solstice, such as "Zengcheng County Records" (an increased edition in the tenth year of Tongzhi in the Qing Dynasty): "The winter solstice is a feast to worship ancestors"; "New Records of Conghua County" (the first year of Qing Xuantong): "On the winter solstice of the mid-winter month, families worship their ancestors and celebrate the lawsuit, such as the story of’ Yuanri’". The winter solstice in Guangzhou is very grand. "Huaxian County Records" (a block-printed edition in the 16th year of Guangxu reign in Qing Dynasty) said that "the winter solstice is celebrated by scholars and husbands. From the beginning of the day to the beginning of the day, the folk custom worships the ancestors and the Yanke, which is especially heavy than other festivals. It is called the group winter to offer a meal. " Nowadays, many older people in Guangzhou still regard ancestor worship on the winter solstice as the most important custom on this day. Cao Popo, who lives in Shabei Village, Baiyun District, has always followed the old ceremony. Every year before the winter solstice, she will buy shad in advance. "Marinate shad with salt, fry the shad skin until golden brown, seal it with plastic wrap and put it in a rice jar, which is called’ pressing winter’." On the day of the winter solstice, she will get up early to get fish, which means that there is more than enough money every year, and then put all the offerings such as roasted meat, winter oranges and glutinous rice balls in the hall to worship her ancestors. "In the past, the days were tight. After completing the ancestor worship ceremony, some of the offerings were robbed by the children to become breakfast and eaten into the stomach." Cao Popo said with a smile that life is getting better and better now, and grandchildren are no longer rare for offering sacrifices to their ancestors. The most important thing to spend the winter solstice is "group winter" (reunion). If the ancients did not reunite with their families on the winter solstice, they were often unhappy.Su Shi once wrote "A Lonely Visit to Jixiang Temple on the Winter Solstice Day": "The sunshine at the bottom of the well has not returned, and the rustling cold rain is wet and withered. Who is more like Master Su, not willing to come alone when he spends time? " Just four sentences, a total of 28 words, describe Su Shi’s inner helplessness. Although Su Shi wants to go back to his hometown to reunite with his family and spend the Winter Solstice Festival together, the real life makes him very helpless, so he has to go to Jixiang Temple alone to play. Sitting around "Tuandong", hot meals warm the stomach and heart. For Laoguang, in winter, glutinous rice balls and preserved glutinous rice are essential! "Every family makes glutinous rice balls, knowing that it is the winter solstice of the Ming Dynasty." According to legend, the original form of glutinous rice balls is a popular snack "Yuan (Yuan) Zi" in Song Dynasty, which is recorded in Dream of Tokyo. When the children finish eating a bowl of sweet glutinous dumplings, the mother often fills another bowl, saying that this is called "adding new year". The New Year has not passed, but it has grown up by one year! The round glutinous rice balls symbolize reunion and perfection, and also place a good vision for life in the coming year. According to a survey, people in Guangzhou love black sesame stuffing, glutinous rice balls stuffed with bean paste and peanut stuffing. Little one learns to make dumplings. Some families in Guangzhou will also specially cook glutinous rice with preserved meat. The ingredients of preserved glutinous rice are very rich, including mushrooms, shrimps, scallops, sausages and other ingredients. Waxy glutinous rice bears the imprint of family. When many people in Guangzhou were young, their elders made it for the holidays. Whenever a wanderer eats glutinous rice outside, he often thinks of a family sitting happily together and eating a bowl of warm waxy glutinous rice to drive away the cold.Talking about the time. Food evaluation Lao Yibo said, why do southerners eat more glutinous rice products during the winter solstice? He believes that, first, glutinous rice is sticky and has the meaning of "reunion" that tightly sticks the family; Moreover, glutinous rice has a high calorie, and eating a portion of glutinous rice in winter is more "hungry" than a bowl of rice. Pan Jianming, vice president of Guangdong Folk Culture Research Association, said that in Guangzhou 40 or 50 years ago, every household still needed to make their own small cakes by hand. Every winter solstice, zhu cun’s neighbors generally like to make meat buns, candy pills or powdered fruit. Eating nine baskets and sitting around the edge furnace is a reunion day on the winter solstice, and there is no shortage of reunion dinner. The winter solstice is difficult to attract the attention of modern people because there is no public holiday. However, in the evening, Cantonese people are still willing to get together and enjoy the reunion dinner. "In the past, most families chose to cook at home, but now they are more willing to go to restaurants for dinner, saving trouble." Feng Yi, who lives in Xihua Road, told reporters that the memory of her childhood winter solstice is inseparable from a reunion dinner. Usually, her mother cooks, kills chickens and geese in advance, buys roast meat, preserves shad, and adds fans, shrimp, fish eggs, mushrooms, radishes and other materials to make nine vegetarian dishes, and then puts them into the "octagonal bowl" with rooster patterns. "Nine dishes not only mean a long time, but also show the importance of festivals. Feng Yi said that the conditions were poor at that time, and there were usually nothing to eat, so everyone was particularly looking forward to the arrival of the winter solstice. "At the end of eating, even the stew in the bowl would be licked clean." But now, her family is used to eating the winter solstice reunion dinner in the restaurant, thinking it is worry-free and time-saving.In addition to the nine baskets, it is freezing in the winter solstice, and the edge furnace has become the best choice for Guangzhou to drive away the cold. In Guangzhou, the history of "edge furnace" goes back to ancient times. In fact, the history of edge-beating furnace in Lingnan has been nearly two thousand years. Various bronze dings were unearthed in the tomb of Nanyue King, including: Chinese bronze dings with short hoof feet, Yue bronze dings with flat straight feet, and Chu bronze dings with high hoof feet. The most noteworthy one is the Chinese bronze dings with the word "Fanyu". Every winter, the King of Nanyue can invite several courtiers to get together, enjoy singing and dancing bells and chimes, and enjoy various delicacies, and at the same time, don’t forget to have a few drinks with a rhinoceros horn-shaped jade cup. In the Qing Dynasty, Guangdong Tongzhi appeared: "Surround the stove on the winter solstice and eat it as a side stove." According to the explanation of "Guangzhou Benzi", eating hot pot and rinsing is like "beating", and because people are standing by the stove and eating food while rinsing, it is called "edge furnace". What ingredients do you use for the edge furnace? The food structure and eating style of Guangfu people who spend the winter solstice also have distinct regional characteristics. Because Guangfu area is surrounded by rivers and seas and rich in aquatic products, its food structure reflects the characteristics of products in large rivers and seas. Guangzhou people love to eat raw fish in winter. Qu Dajun mentioned in "Guangdong New Language": "Cantonese customs are fond of raw fish, with perch, silver carp, yellow croaker, silver carp, snow carp and bighead carp as the top priority." In the Qing Dynasty and the Republic of China, there were many "Zhuzhi Ci" related to Guangzhou fish, such as "The winter solstice fish is the same everywhere, and the fresh fish is exquisite. A cup of hot wine will cool you down, which is still a fad in the past. " Traditional raw fish mostly take pomfret as raw material. "slice" with a thin knifeSlices as thin as cicada’s wings and crystal clear are made into raw fish, which is eaten with various ingredients and sauces. In the early morning of the winter solstice, various residential areas in Guangzhou became lively, and every household bought fish and meat. On the night of the winter solstice, the weather is getting colder. In addition to raw fish, people in Guangzhou also like to "edge the stove". Shrimp, squid, pork liver, lettuce, chrysanthemum, spinach, etc., the meat is cut into pieces, and the fish is cut into two pieces that are connected like butterflies, which are put into the soup and eaten immediately. This method is called "crossing the river with sand". However, with the change of the times, everyone gradually realized that the risk of parasites eating raw fish was extremely high, so they changed to eating cooked food by the side stove. Guangzhou people especially like radishes on the winter solstice. As the saying goes, "Radish in winter solstice and ginger in summer solstice, eating at the right time is not painful", which means eating the right food in different seasons to achieve the purpose of health preservation. In winter, people are accustomed to tonic and do little exercise every day, so it is easy to generate heat and phlegm in the body. Eating radish can stop coughing, quench thirst and promote the qi of viscera, while eating ginger in summer can increase appetite and promote digestion. In ancient times, people didn’t have mobile phones, computers, entertainment, air conditioning and heating, but even if the weather is cold, they should live a good life. Going home to visit relatives, seeking roots and visiting friends and hiking to enjoy the scenery has become an important activity of the winter solstice. Guangzhou people have the custom of going to Luogang to enjoy the "snow" on the winter solstice since ancient times. Luogang Xiangxue, one of the eight scenic spots in Yangcheng, has presented a beautiful landscape of "Shili Meilin" for thousands of years and has become one of the resorts for Guangzhou people to punch cards in the winter solstice. According to records, the cultivation of green plums in Luogang area originated in the Song Dynasty.Because of its unique natural environment, it often blooms twice. In the 1950s and 1960s, Meiyuan stretched for dozens of miles, commonly known as "Shili Meilin". Before and after the winter solstice every year, plum blossoms are in full bloom everywhere, white and crystal clear, full of fragrance, and the wind pulls flowers and dances, not flying snow is better than flying snow. Nowadays, in addition to Luogang Xiangxue Park, there are many places to enjoy the "snow". Plum Valley in Baiyun Mountain has about 600 varieties of plum trees such as Meizhou Palace Powder and Chaotang Palace Powder. Every time plum blossoms are in full bloom, hundreds of plum blossoms compete to open; There are nearly 60 Bai Mei plants in the Four Gentlemen Garden of Baiyun Lake, and the rippling water is just a stone’s throw away, so the Meilin landscape near the lake is particularly elegant. Fat and thin in winter, dry and wet in winter, Guangfu people often say "fat and thin in winter", and winter is more abundant than Chinese New Year. In fact, the saying that fat winter is thin has appeared as early as the Song Dynasty. Song people attached great importance to the winter solstice, but why was it a fat winter and thin year? Jin Yingzhi’s historical notes of the Southern Song Dynasty, The Drunken Weng Tan Lu, are analyzed as follows: "The capital city (now Hangzhou) has three major festivals: cold food, winter solstice and New Year’s Day (now Spring Festival) … Therefore, many people ask about each other’s legacy (greet each other and visit each other), and they will not talk about it until they are old or have insufficient financial resources. There is a saying that’ fat winter is thin’. " It turns out that the festival is too close, spending too much money is limited, so we have to make a choice. However, it can be seen that people pay more attention to the winter solstice than to the Chinese New Year. There are also some sayings about the weather on the winter solstice, the most famous of which is "dry winter and wet year" and "wet winter and dry year", which means that it rains around the winter solstice, and it is often sunny during the Spring Festival, and vice versa. "dry winter and wet year"Is this statement true? Experts say it’s not absolute, it’s just a folk saying. There is no corresponding relationship between the sunny winter solstice and the rainy Spring Festival. Whether it rains during the Spring Festival is mainly determined by the weather system and atmospheric circulation before and after the Spring Festival. Inheriting the white-cut chicken dumplings, waxy glutinous rice, reunion in winter must be eaten for thousands of years. Although the traditional winter solstice custom of Guangzhou people may gradually disappear in the city, many families in Guangzhou still regard the winter solstice as a big festival. Spending a big Chinese New Year holiday in Guangzhou-the winter solstice, can fully prove that Guangzhou exists as a traditional and modern city with great tolerance. On the winter solstice, Guangzhou people who are born and raised often have a family dinner with a traditional sense of ceremony to pin their beautiful vision of family reunion and spend this wonderful and warm day; And many new "Hakkas" who come from all corners of the country to settle down in Guangzhou do as the Romans do. In addition to expressing their homesickness through food with hometown characteristics, they have gradually integrated into Guangzhou’s local flavor customs, and finally condensed into Guangzhou’s rich winter solstice eating customs over time. Winter solstice, revisiting the family holiday dinner ceremony and celebrating the winter solstice according to traditional customs is still the choice of most old people. Every winter solstice night, food critic Lao Yibo’s family must eat "Kaiping Tangyuan". He was born and raised in Guangzhou, but his hometown is Kaiping, Guangdong. Every winter solstice, his parents cooked a large pot of Kaiping glutinous rice balls for the whole family to enjoy. "It is in this way that parents pin their homesickness, and it is also in this way that we remember our ancestral home."Lao Yibo said. Kaiping glutinous rice balls are solid glutinous rice balls, which are only the size of an adult’s index finger. Because of their simple production, when they were young, they always participated in the "action" of rubbing glutinous rice balls together, and glutinous rice balls of different sizes, such as big beads and small beads, fell on the plate. This soup dumpling is the "protagonist" of their winter solstice reunion dinner that night, accompanied by a home-cooked boiled chicken and a plate of boiled shrimp. The soup base of glutinous rice balls is made by boiling chicken shells. Tangyuan is the staple food, and the soup is also rich with fried shad balls, dried pork, dried shrimps, mushrooms, shredded radish and other vegetables. On a cold winter night, a bowl of warm glutinous rice balls warms not only everyone’s stomach, but also the heart of every family member sitting around a table. Boiled chicken with nine famous dishes. Matthew, a media person, is also a native of Guangzhou. He regards the arrival of the winter solstice as one of the most important comforts all the year round, just like a person taking part in a marathon, which is the most important supply station before the end of the race. In his memory, the day of the winter solstice means the time for family reunion. One of the most important things for a housewife’s mother all the year round is to prepare dinner on the winter solstice. When mother is physically able to do housework, she starts to be busy inside and out the day before the winter solstice. In the early years, the economy was not affluent, and the family had a large population. It was not easy to prepare a winter solstice dinner, but even so, I would rather scrimp and save on weekdays, and I would like to prepare more abundantly on the winter solstice day. In the early morning, she will rush to the market to buy food, kill chickens and ducks, prepare dinner, and then everyone will sit around a table.Have a big meal. What impressed Matthew the most was not only the delicious food cooked by his mother, but also the winter solstice dumplings made by his mother, which were filled with shage, pork and shrimp and served with chicken soup, salty but not greasy and delicious. This day’s waxy glutinous rice is not only delicious, but also excellent in meaning. According to mom, glutinous rice means warmth, and it is warm from the beginning to the end of the year. My mother also presents her dried bacon to relatives and friends on the winter solstice. Guangdong-style beef bone beef offal pot, take a bite for the winter, it’s really delicious. The ritual feeling of the full dinner on the winter solstice also made Matthew memorable: Mom is very traditional. Before meals, the family should worship their ancestors first, and they are not allowed to move chopsticks until everyone is here, otherwise they will have to wait even if they wait. The custom of "wintering" continues among the new generation. For Xiao Zhang, a new Guangzhou native born in 1990s, Guangzhou’s strong custom of celebrating the winter solstice has awakened childhood memories and deepened his understanding and recognition of China culture. He told reporters that in Guangdong, where traditional culture is well preserved, the winter solstice is a lively and extraordinary festival, which makes people feel warm and comforted. The winter solstice is regarded as the "sub-year-old" after the New Year. It is not only the end of a year, but also the beginning of a new year. It is a day of family reunion and happiness. Looking back on the winter solstice when I was a child, a few days before the festival, my parents had begun to prepare all kinds of ingredients for the festival, such as mutton, beef and chicken … On the winter solstice, I would see a table full of delicious food, and the whole family would gather around the table to drink, warm up, eat delicious food and chat at home. On the morning of the winter solstice, my mother will wake me up from the bed."The dumplings I cooked are cold, so don’t get up quickly." Listening to my mother’s nagging, eating round glutinous rice balls, which is the warmth of home alone. Have a bowl of warm glutinous rice balls. Miss a bowl of hot glutinous rice balls in the morning of the winter solstice, miss the reunion dinner at night of the winter solstice, miss the tender and meticulous care of parents … This winter solstice, Xiao Zhang decided to go home for the holiday, "Winter solstice is a big New Year", don’t eat dinner alone, it’s better to go home! Have a happy reunion dinner with my family on the night of the winter solstice. It is a day of family reunion to let the traditional winter solstice custom return to the winter solstice rationally. With the improvement of people’s living standards, it has long been the choice of many families in Guangzhou to have a reunion dinner in restaurants. Many people in Guangzhou began to choose restaurants to celebrate the holidays and have family reunion, so that all restaurants, large and small, were shocked (lively). Slowly, the winter solstice became one of the busiest festivals in Guangzhou restaurants in a year. After the winter solstice, the Spring Festival, when the whole family has dinner together, is approaching. In recent years, the developed take-out has promoted the dishes in the Winter Solstice restaurant to enter thousands of households. The complex and laborious "hard dishes" such as Buddha jumping over the wall and potted vegetables have met the needs of some citizens to "eat at home". Gum, abalone, sea cucumber, duck’s feet, chicken wings, pig’s hands, blessing bags … They are soaked in abalone juice, and the rich sauce is boiling in the furnace, and the rising fireworks surround the family, driving away the cold of winter nights. Compared with dishes that are cold as soon as they are put, it is more enjoyable to enjoy hot dishes while boiling. Guangdong-style mutton pot that has been passed down for five generations. This year, as the winter solstice approaches,Although it is still the choice of Guangzhou people to go to restaurants to order takeout for the winter solstice, many people plan to regain traditional customs and spend the winter solstice at home, which to some extent allows the traditional winter custom to return. Matthew is one of them. Now the brothers and sisters have already married separately, and the mother is old, and she can no longer cook and take charge of the kitchen utensils and prepare the winter solstice dinner for her family. Matthew intends to let the nanny who takes care of the elderly at home buy fresh chicken, duck and fish in the vegetable market on the winter solstice and bagged dumplings in the supermarket. Although for many people in Guangzhou, it is no longer a "standard" to eat glutinous rice balls on the winter solstice, what is needed is a sense of ceremony and a warm feeling of home. Affection and warmth are all in this hot glutinous rice ball. Guangzhou people spend the winter solstice in this way, which contains their love for life, their persistence in tradition and their great cherish for the change of years. The sky is dark and smoky, and the famous papers are handed down to celebrate the winter. Embroidered curtains are not rolled up, and it is easy to laugh and laugh. —— Yuan Ma Zhen, thousands of families have been singing for a long time, and they have traveled far and wide. Buy fish, sell wine and close the market, and cook tea to wash the guest dust. —— Ming Zhang Bi

CCTV News:During the period of Spring Festival travel rush, the passenger flow of Shenzhen Railway maintained a high level and rose steadily, and the peak of passenger flow before the holiday was coming. In order to meet the travel needs of passengers, since February 3, Shenzhen Railway Department has successively opened several high-speed trains at night.

At 00: 10am on February 3rd, the first night high-speed train G4598 from Spring Festival travel rush in Shenzhen in 2024 departed from Shenzhen North Station and ended at Wuzhou South Station. More than 1,000 passengers took this high-speed train to go home.

In Spring Festival travel rush in 2024, according to the pre-sale of tickets and the standby ticket purchase of 12306, the Shenzhen Railway Department increased the capacity in popular directions. On February 3-4 and 6-9, 48 night high-speed trains were added from Shenzhen North Station to Chengdu, Guiyang, Nanchang, Changsha South, Wuhan, Zhengzhou East, Zhanjiang and Chaoshan, and 6 night general-speed passenger trains were added from Shenzhen East Station and Shenzhen Station to Changsha and Yueyang.

During the night high-speed rail operation, Shenzhen Railway also contacted the local transportation department to connect with the surrounding public transportation service hours such as buses and subways, so as to realize the "zero-distance connection" for passengers to travel at night and ensure the "last mile" for passengers to travel.

Pre-holiday peak arrival "charging battery life" home road

In Spring Festival travel rush this year, there are many passengers traveling by car, which is the main artery of north-south traffic in China — — In the service area of Beijing-Hong Kong-Macao Expressway, the number of new energy vehicles charged these days is 10 times more than usual. Is the charging pile enough? What is the charging efficiency? The reporter came to the scene to find out.

CCTV reporter Chen Xi:I am now at the entrance of Baoding service area of Beijing-Hong Kong-Macao Expressway, about 150 kilometers south of Beijing. As you can see, these vehicles leave Beijing and arrive here in about 2 hours. They will refuel, eat and rest in the service area.

Facing the structural changes of self-driving travel, before Spring Festival travel rush this year, 12 high-power charging piles were built in Baoding service area ahead of schedule, and now 20 new energy vehicles can be charged at the same time. Near noon, more and more cars entered the service area. The reporter noticed that all charging piles in the service area were running at full load.

New energy owner Feng Wei:Hello, big brother, there are so many cars. When can I charge this car?

Hebei Baoding service area staff:Don’t worry, we have already dispatched, and the mobile charging car will come soon.

Huo Guoqing, Marketing Manager of a New Energy Technology Company:Four cars can be guaranteed at a time, and more than 100 trains a day (one charging car can charge), and the fixed piles here can basically meet the use of Baoding service area.

The reason why the mobile charging car can be dispatched in time is because there is a "smart brain" behind it. There are seven service areas along the Beijing-Hong Kong-Macao Expressway. The "small dispatch" can dispatch the charging piles in each service area, while the smart dispatch center 100 kilometers away connects the seven scattered service areas into a "line" through the "big dispatch" to co-ordinate all 84 charging piles and 3 mobile charging vehicles on the whole expressway.

During the period of Spring Festival travel rush, the number of new energy vehicles traveling on expressways in Hebei Province is expected to reach about 3.5 million, and the charging pressure is huge. In addition to the "on-demand charging" charging method of charging piles, Hebei Province has also added 50 power stations, with a total of 65. The reporter saw at the scene that it only takes 3 minutes for the new energy vehicle to change the battery, and the replaced battery is left in the power station for charging, and the owner behind can recycle it.

New energy owner Zhou Yadong:There are still about nine hours to go to Xi ‘an, about once every 200 kilometers (battery) and four times (battery to Xi ‘an). It is more convenient to change electricity all the way through our route.

In order to cope with the large passenger flow in Spring Festival travel rush this year, the Hebei Provincial Department of Transportation built 293 highway charging piles in 2023, with a total of 962; 50 new power stations have been added, which is more than three times higher than before, fully ensuring the "rechargeable battery life" on Spring Festival travel rush Road.

The renovation of old residential areas is a major livelihood project and development project. General Secretary of the Supreme Leader pointed out that the renovation of old residential areas is an important task to enhance people’s sense of gain, and it is also an important part of the implementation of urban renewal. The Community Construction Department of the Urban Construction Department of the Ministry of Housing and Urban-Rural Development (hereinafter referred to as the "Community Department") takes the transformation of old residential areas as the focus of doing practical things for the masses, and solves the "great livelihood" with "small incision" to continuously enhance the people’s sense of acquisition, happiness and security.

This year, this young team won the National Worker Pioneer. "The renovation of old residential areas is an important task to improve people’s quality of life, and it is a practical matter of people’s livelihood around the people. We are honored to be able to shoulder the heavy responsibility and win the honor, and we feel even more responsible. " Relevant comrades in the community office said.

Find out the base, pilot first, and clarify the direction of the transformation path

Most of the old residential areas were built before 2000. The construction standards of these residential areas are low, coupled with long-term neglect, incomplete municipal supporting facilities, aging houses and other outstanding problems. There are shortcomings in facilities, environmental supporting facilities and public services, which is far from the growing needs of the people for a better life. Residents have a strong willingness to transform. Old residential areas are large in quantity and wide in scope, and the task of renovation is heavy. How to promote renovation in a solid and orderly manner throughout the country?

Understanding what the masses think and expect, and learning from the grassroots is the first priority. The Community Department organized 20 departments and units to conduct in-depth research on 213 old communities in 93 cities and counties, and combed and analyzed the current situation, transformation needs and experience of old communities. Subsequently, Shandong and Zhejiang provinces and eight cities including Shanghai and Suzhou were organized to deepen the pilot projects, and special classes for joint work were set up with local comrades to jointly explore the establishment of nine mechanisms, such as mobilizing the masses to jointly build, sharing reconstruction funds and integrating and utilizing existing resources, and to "explore the road" in the reconstruction projects in detail, so as to accumulate experience for comprehensively promoting the transformation.

On the basis of comprehensive investigation and summing up the pilot experience, the Community Department took the lead in drafting the Guiding Opinions on Comprehensively Promoting the Renovation of Old Urban Residential Areas, which defined the target tasks and the scope of objects, established a package of support policies to meet the needs of renovation projects in terms of approval of renovation projects, taxation and finance, land and so on, basically formed the institutional framework for the renovation of old urban residential areas, and the renovation work was rapidly and comprehensively promoted throughout the country.

Guide the whole process and do a good job in deployment and implementation.

Since 2019, the country has started to renovate nearly 220,000 old urban communities, benefiting hundreds of millions of people. However, the larger new start-up tasks every year, coupled with the projects under construction, have brought great pressure to the streets and communities at the grassroots level. How to make the policy better adapt to the needs of the grassroots and land solidly?

The community department insists on keeping its eyes down, stepping down, throwing itself down and sinking into the front line, so that the policy can be passed on layer by layer from formulation to promotion to landing.

"The transformation of old residential areas is the initial intention and mission of this office. We are both policy makers and policy practitioners and implementers." Relevant comrades said.

According to reports, since 2019, the renovation of old residential areas has been included in the affordable housing project, and the General Office of the State Council has issued guidance. The Ministry of Housing and Urban-Rural Development, together with relevant departments, put forward targeted work requirements for the renovation work in that year according to the latest situation, tasks and objectives, and new situations and problems arising in the renovation, and made clear the "positive list" and "negative list" of work, so as to promote all localities to do their best and do their best to promote the renovation well and quickly.

With the gradual advancement of the renovation of old residential areas, the Community Department promptly answered questions about the difficulties encountered in various localities, followed up and summarized the deepening innovations in the implementation of policies in various localities, organized and printed seven batches of List of Replicable Policy Mechanisms for the Renovation of Old Urban Residential Areas, promoted the replicable experiences and practices in pioneering areas, guided all localities to learn from them, accelerated the improvement of working mechanisms and policy systems that meet the needs of renovation, and promoted the implementation of renovation policies.

For example, in order to solve the problem of "public needs and women need to face" in the transformation of old residential areas, the community department guides all localities to fully mobilize the masses to participate, ask for the needs of the people, ask for the people, ask for the benefits of the people, and seek the greatest common denominator of the transformation effect.

In the residents’ meeting hall of an old residential area in Qingdao, Shandong Province, a young cadre from the community office discussed the renovation plan of the residential area with the residents. Because there are many people in the surrounding primary schools during school hours, the residents are very concerned about the design plan of optimizing the internal traffic routes and getting through the fire exits. "Making policies and implementing them are different. Every old residential area has its own characteristics, and the needs of each resident are different. The renovation plan must be determined according to the wishes of residents and the actual situation of the residential area. In this process, it is very important to be with residents, want to be together, and be together. " The young cadre said with emotion.

Experience comes from grassroots practice and wisdom. The community department adheres to the typical demonstration and leads the way, and promotes the transformation process in various places with demonstration projects. Since 2021, the Community Department has identified a number of contact points communities every year, and adopted the methods of leaders’ efforts, young cadres’ on-the-spot investigation, and experts’ assistance to help the communities break the blocking points of renovation, create demonstration model projects, and share experiences and experiences with community cadres in the streets where various renovation communities are located throughout the country.

In order to evaluate the transformation work more scientifically and objectively, the community office has defined the measurement standard of the transformation work through performance evaluation, supervision and encouragement, so as to make the policy baton and the evaluation index system more unified. During the research and establishment of the National Statistical Investigation System for the Renovation of Old Urban Residential Areas, the Community Department, together with grassroots comrades, repeatedly studied the connotation of each statistical indicator in order to be accurate and efficient, focusing on the goal of timely and accurately reflecting the progress of the renovation and minimizing the statistical burden. "This set of statistical indicators has clear logic and strong pertinence, which is very helpful for guiding and promoting local work. The progress of the work can be clearly reflected in the statistics. Behind the figures are the transformation results that every resident can see and touch, and they are all tangible results. " A grassroots cadre responsible for the renovation of old communities said.

The central and local governments have resonated at the same frequency and exerted their strength in the same direction, overcoming difficulties and taking advantage of the situation. The policy implementation has not only not weakened, but the signal has become stronger and stronger.

Cooperate to fill the shortcomings and improve the supporting facilities

Living and working in peace and contentment is the simplest wish of China people. Residents spend most of their daily life, food, clothing, housing and transportation in the community. In order to do the "last mile" of serving the masses well, the Community Department cooperated with various departments Qi Xin to integrate resources and fill the shortcomings of facilities and services.

"what is missing, what to make up." The Community Office guides all localities to explore the working method of "physical examination before renovation", and before renovation, it conducts a thorough investigation of the facilities in the community, focuses on residents’ needs, adheres to goal orientation and problem orientation, adopts "menu-based" renovation, and makes precise efforts with "one district, one policy", giving priority to solving the urgent problems of the masses, using limited funds at the cutting edge and changing them into residents’ "hearts".

"Stick to the bottom line of safety" and focus on eliminating potential safety hazards. Accelerate the renovation of aging and hidden dangers of gas, water supply, heating, drainage, power supply, communications and other pipelines and pipelines, and put the concept of safe development throughout all links and the whole process of renovation.

"One old and one young" is the main concern of most families. The Community Department guides all localities to actively revitalize the housing and land resources in the community and surrounding areas, and add service facilities such as home care service centers, canteens for the elderly and children’s post stations according to local conditions. In conjunction with the State Sports General Administration, the "national ball into the community" campaign was launched, and small sports and fitness facilities such as table tennis tables were added for old communities to allow residents to move at their doorsteps.

In recent years, residents have a high voice for installing elevators in existing houses, and the community department has faced up to the difficulties of reaching a consensus and raising funds, and adhered to the combination of rule of law and rule of virtue to help solve the problem of "it is difficult for suspended elderly people to go downstairs". Seize the favorable opportunity when the National People’s Congress promulgated the law on barrier-free environment construction, and promote national legislation to support the installation of elevators in existing multi-storey houses in old urban communities. Give play to the role of grassroots organizations in street communities, take party building as the guide and residents’ consultation as the basic working methods, and promote residents to reach a consensus. In conjunction with the Supreme People’s Court, a typical case was issued to guide residents to correctly understand the legal provisions applicable to installing elevators, and to carry forward the traditional virtues of the Chinese nation, such as being good neighbors and helping each other.

Great cause inspires people to forge ahead. The achievements made by the Community Office courageously come from the broad masses of the people’s support for the major decision-making arrangements of the CPC Central Committee and the State Council, and also reflect the hope of millions of grassroots community workers and community residents to work together to build a beautiful home.

　　[XCAR Five Questions and Five Answers Original]

　　On August 22, 2016, the new E-class long-axis version of Beijing Benz was officially launched, and a total of six models were launched, with a price range of 436,800-499,800 yuan. The Mercedes-Benz E-Class long-axis version listed this time is the tenth generation model and the third generation model made in China. The new Mercedes-Benz E-class long-axis version continues the essence of S-class in appearance and interior. Compared with the standard-axis version, the wheelbase has increased by 140mm, and the configuration has been improved in all directions. The competitiveness is no longer the same as that of the old model. What are the highlights of the new Mercedes-Benz E-Class Long Axis Edition? Can face value and configuration conquer consumers? Is the comprehensive competitiveness strong? The following is to answer these questions through the special column "Five Questions and Five Answers" of Aika Automobile. Let’s talk about the editor’s personal thoughts in advance. When I see the brand-new Mercedes-Benz E-Class long-axis version, I want to buy one especially even if I borrow money. I wonder if you will have this idea after reading the following introduction!

　　Question 1: Which generation is the new Mercedes-Benz E-Class long-axis version?

　　In fact, friends who are interested in Mercedes-Benz E-Class must have a better understanding of its history, but I believe there are still many netizens who are not very clear about it, or only know about several generations of models that are closer to us. In fact, the development of Mercedes-Benz E-Class has experienced ten generations of models. For a model with a history of nearly 70 years, we have no reason not to understand its past. In other words, the first generation of Mercedes-Benz E-Class has been very far away from me. At that time, my parents were not born yet, so I couldn’t learn about the past of Mercedes-Benz E-Class from my parents, so I could only collect materials from all directions. If there is any poor introduction, please forgive me.

　　The first generation models are for you who like nostalgia.

　　Need to remind everyone that before the launch of the mid-term redesign of the sixth-generation Mercedes-Benz E-Class, it was not named after the familiar "E-Class", but named after the chassis number of W plus number.

　　　 Let’s first look at what the first generation of Mercedes-Benz E-Class looks like. The birth of the first generation of Mercedes-Benz E-Class dates back to 1947. After World War II, Mercedes-Benz resumed production of 170V and 170S models with chassis codes W136 and W191. The first generation of Mercedes-Benz E-Class was improved according to the model before World War II. The features such as independent headlights and independent rims are very obvious and full of retro style.

　　The second generation Mercedes-Benz E, the first sedan captain, is like this.

　　In 1953, the second generation Mercedes-Benz E-Class was born. The model was named 180 and the chassis number was W120. The second-generation Mercedes-Benz E-Class has completely escaped from the shadow of the first-generation model, and it is also the first sedan of Mercedes-Benz E. It adopts a non-loaded body to ensure spacious interior space. In terms of power, it adopts a 1.8L four-cylinder engine with a maximum power of 52Ps, and the transmission is matched with a 4-speed manual transmission. In 1955, the second generation Mercedes-Benz E introduced an upgraded model 190 with chassis code W121, which was not discontinued until 1961.

　　The sales volume of the fin-shaped tail of the third-generation model exceeded 620,000.

　　In 1961, Mercedes-Benz introduced the third generation E-Class with chassis code W110, including two models: 190c/190Dc. The biggest change of this generation is the fin-shaped rear design. The body size has also been upgraded, with a length of 4730mm and a wheelbase of 2700mm.

　　　 In terms of power, the 190c is still equipped with a 1.9L gasoline engine with a maximum power of 80Ps, while the 190Dc is equipped with a brand-new 2.0L diesel engine with a maximum power of 55Ps. Since 1962, W110 series has added a four-speed semi-automatic gearbox on the basis of a four-speed manual gearbox. In addition, in the later period of W110 series, a 230 model equipped with a six-cylinder 2.3L gasoline engine was added for the first time, with a maximum power of 105Ps. By the end of production in 1968, the third-generation Mercedes-Benz E-Class sold a total of 620,000 vehicles.

　　The fourth-generation models have sold more than one million years ago.

　　In January 1968, Mercedes-Benz officially launched the brand-new Stroke Eight "/8" car series, which is the fourth generation Mercedes-Benz E, with the chassis code W114/W115. This generation of cars has changed greatly in appearance, giving up the fin-shaped rear design of the third generation models and using a lot of concise and lively design styles. In addition, this generation of Mercedes-Benz E-Class models began to enrich, providing a total of 15 models for consumers to choose from, which is also a huge vehicle layout today.

　　In addition, it should be noted that the parking brake of the fourth-generation Mercedes-Benz E bid farewell to manual operation, but adopted the pedal-operated auxiliary brake that we are very familiar with, and at the same time adopted the diagonal swing shaft on the rear suspension, which improved the overall balance, comfort and stability of the vehicle. In terms of power, the W114 series is equipped with a six-cylinder engine, and the upgraded W115 is equipped with a five-cylinder or four-cylinder engine. The top 250CE model also joined the Bosch D-Jetronic electronic fuel injection system for the first time. The fourth-generation Mercedes-Benz E-Class didn’t stop production until 1976, and the cumulative sales volume was close to 2 million.

　　The fifth-generation car was made in China for a short time but left an eternal memory.

　　In 1976, Mercedes-Benz officially launched the fifth-generation Mercedes-Benz E-Class with chassis code W123. This generation of cars has undergone minor changes in appearance, such as changing the lights to horizontal design, and the shape of the water tank grille at the lower part of the front face is also very modern. This generation of Mercedes-Benz E launched the five-door travel version, two-door Coupe version and four-door long-axis version for the first time.

　　In terms of safety, the fifth-generation car has also made a qualitative leap. First, the fuel tank is placed on the rear axle of the car to reduce the danger caused by collision. In addition, a new safety steering column is added, which can fall off sideways in a side collision to prevent the steering wheel from folding into the car in an accident and causing harm to the people inside the car. In the mid-term change, this generation of E-class supports the optional ABS and driver airbag, and the safety is further improved. In terms of power, this generation of Mercedes-Benz E-Class adopts a new 2.8L inline 6-cylinder DOHC fuel injection engine on the 280E model, with a maximum power of 142Ps.

　　It should be noted that in 1988, the fifth-generation E-Class was also introduced from Changchun FAW in the form of CKD, with a total volume of 828. Less than 1,000 of these vehicles are mainly used by senior national leading cadres and foreign guests, and the number of them entering private homes is very small, which cannot be compared with today’s domestic E-class.

　　The sixth-generation car was officially named "E-Class Car" and was first imported into China.

　　In 1985, Mercedes-Benz introduced the sixth generation of Mercedes-Benz E-Class, and the chassis code was W124. In June 1993, the name of "E-Class sedan" in E+ digital mode was formally determined. This generation of E-Class sedan was also the first E-Class imported from China by Mercedes-Benz.

　　The sixth-generation E-class has changed greatly in appearance, and the overall design is more elegant and stable, and the convertible version has been launched for the first time. The weight of this generation of cars has been optimized, the handling performance is better, and the aerodynamic design is equally excellent. The drag coefficient of 0.28 is the best evidence. In terms of safety, the driver’s airbag and ABS have been changed from the option of the previous generation to the standard, and new options such as the co-pilot airbag and ASR traction control system have been added.

　　In terms of power and chassis, in addition to retaining the four-cylinder, five-cylinder and six-cylinder engines, this generation of models has also introduced a 500 E model equipped with a 5.0L V8 engine, with an acceleration time of 6.1 seconds from 0 to 100 km/h and a maximum speed of 250km/h, making it the first model equipped with the first generation of 4MATIC four-wheel drive system. In terms of chassis, this generation of models adopts front multi-link and rear independent suspension, which is more excellent in comfort and handling. In addition, in 1986, the two-door Coupe was also equipped with a 5.6L V8 engine with a completely independent cylinder head developed by AMG, which was only an engine manufacturer at that time. The maximum power reached 360Ps and the 0-100km/h acceleration time was 5.4 seconds. Then in 1990, Mercedes-Benz officially cooperated with AMG, and the launch of E 60 AMG and E 36 AMG created the history of E-class AMG models.

In 1970, the Long March-1 carrier rocket successfully launched China’s first artificial earth satellite "Dongfanghong-1". Information photo

　　On the occasion of the May 1 ST International Labor Day in 2019, the Central Propaganda Department and the All-China Federation of Trade Unions publicly released the advanced deeds of "the most beautiful workers" in 2019 to the whole society. The picture shows the overall design team of the deep space exploration spacecraft system of the General Department of China Academy of Space Technology of China Aerospace Science and Technology Corporation at the release ceremony on April 21st. Xinhua news agency

　　The report of the 19th National Congress of the Communist Party of China expounded the initial intention and mission of the Communist Party of China (CPC) people to "seek happiness for the people of China and rejuvenation for the Chinese nation". For the happiness of China people and the rejuvenation of the Chinese nation, the purpose of China Academy of Space Technology (hereinafter referred to as "Academy") is to develop China’s space industry, serve the national strategic needs, build a world-class aerospace enterprise, and support the construction of a space power. While the whole Party is carrying out in-depth education on the theme of "Do not forget your initiative mind, Keep in mind the mission", it is of great significance to grasp, follow and apply the development law of China’s space industry, stick to its original intention and shoulder the mission bravely, so as to accelerate the development of China’s space industry and better shoulder the historical responsibility of building a space power.

　　1. Grasp the development law of China’s space industry and adhere to the development path of space industry with China characteristics.

　　Looking back on the development of China’s space industry, the development law of China’s space industry is a magic weapon for China’s space industry to create new glories from scratch and from small to large, and it is also an important cornerstone for carrying forward the past and forging ahead courageously, which must be adhered to for a long time and never wavered.

　　Adhering to the leadership of the Party is the fundamental guarantee for the rapid development of China’s space industry.

　　The most essential feature of Socialism with Chinese characteristics is the Communist Party of China (CPC)’s leadership, and the greatest advantage of Socialism with Chinese characteristics system is the Communist Party of China (CPC)’s leadership. Space cause is a great cause that concerns national security, shows national strength and embodies national will. As the main force to promote the development of China’s space industry, the establishment of the research institute is an important decision and strategic choice made by the CPC Central Committee to achieve breakthroughs in economic, national defense and scientific and technological construction in the poor and weak domestic environment. The CPC Central Committee has always attached great importance to the development of the space industry. From the beginning of the establishment of the space industry in 1956 to the present, every step forward and every leap in the development of China’s space industry cannot be separated from the wise decision-making and correct leadership of the CPC Central Committee.

　　At a time when new China is in full swing, the CPC Central Committee has made a decision to develop the space industry considering the country’s long-term development strategy. In 1958, Comrade Mao Zedong put forward that "we should also build artificial satellites", which started the journey of exploring space in China. At the beginning of the reform and opening-up, the CPC Central Committee approved the "863" high-tech research and development plan and made a major decision to develop the "New Samsung One Arrow". In the 1990s, manned spaceflight was carried out. In the 21st century, manned spaceflight and lunar exploration projects, Beidou satellite navigation system and high-resolution Earth observation system have been included in the national medium-and long-term scientific and technological development plan. Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has attached great importance to the construction of a space power, demanding that we "make new contributions to the construction of a space power", which has opened a new chapter in China’s space industry.

　　History shows that the development history of China’s space industry is a struggle history of adhering to the leadership of the Party, firmly following the direction of the CPC Central Committee, and pushing the cause from victory to victory. Adhering to the party’s leadership is a unique advantage for the development of space industry, and it is also the fundamental guarantee for our brilliant achievements.

　　● Always adhering to the country-oriented value orientation is a solid cornerstone for the rapid development of China’s space industry.

　　General Secretary of the Supreme Leader pointed out that in the long history of the Chinese nation’s development for thousands of years, patriotism has always been the passionate theme and a powerful force to inspire people of all ethnic groups in China to strive for self-improvement. "Putting the country first" is a vivid manifestation of patriotism in China’s space cause. For the people in the institute, "putting the country first" means "serving the motherland with success and creating brilliance with Excellence", always insisting on putting national interests first and personal interests subordinate to national interests.

　　Looking back at the history, the development course of the Institute for more than 50 years is an epic of glorious struggle by generations of researchers, Do not forget your initiative mind, who strives for progress, values the country and dares to surpass it. In the initial stage of their career, the older generation of researchers, represented by Qian Xuesen, Yang Jiayuan, Wang Xiji and Sun Jiadong, returned to China with infinite love for the motherland, devoted themselves to the development of space, and turned China’s first artificial earth satellite — — Dongfanghong-1 was sent into space. During the period of social transformation, the people in the institute have been adhering to the belief of "I will do it if the motherland needs it", and have worked hard on their majors, laying a solid foundation for the rapid development of the space industry in the future. During the period of career development, the researchers unified patriotism, ambition to strengthen the country and the trip to serve the country, and explained the life creed of "serving the motherland with success and creating brilliance with Excellence" with practical actions.

　　History has proved that "putting the country first" is the unswerving choice of researchers. People in the institute consciously link personal ideals with the destiny of the motherland, personal choices with the needs of the country, and personal interests with the interests of the people. Adhering to the country-oriented value orientation is a solid cornerstone for the rapid development of China’s space industry.

　　● Adhering to the road of self-reliance and independent innovation is the only way for the rapid development of China’s space industry.

　　General Secretary of the Supreme Leader has repeatedly stressed that China must "adhere to the road of independent innovation with China characteristics" and "be determined to innovate independently, strengthen innovation confidence, and strive to enhance independent innovation capability." Key core technologies can’t be bought, bought or discussed. China’s space industry must take the road of self-reliance and independent innovation to build the country’s heavy weapon.

　　The development history of China’s space industry is a struggle history of self-reliance and independent innovation. During the development of the "Dongfanghong-1" satellite, the researchers were self-reliant, overcame numerous technical difficulties and created a solid "China thickness"; In the process of carrying out the manned spaceflight project, the researchers broke through and mastered the core technologies such as round-trip between heaven and earth, extravehicular space, rendezvous and docking, and on-orbit propellant replenishment, and constantly refreshed the "China speed" in the history of aerospace; During the construction of Beidou navigation satellite system, the researchers realized that the core technologies of on-board equipment such as atomic clock were in hand and 100% controllable, creating a perfect "China accuracy"; In the process of implementing the lunar exploration project, the researchers built the world’s first earth-moon relay communication satellite, realized the first soft landing on the back of the moon, and constantly refreshed the "China height" of deep space exploration; In the process of promoting the special project of high-resolution Earth observation system, researchers have broken through a series of major technical bottlenecks of high-resolution Earth observation, and supported the national people’s livelihood security with a steady "China span".

　　The road of independent innovation and development has been explored by generations of researchers in the long and arduous struggle. Adhering to the development path of self-reliance and independent innovation contains the deepest national endowment of the Chinese nation, which is the only way to climb the peak of world science and technology and the only way for the rapid development of China’s space industry.

　　● Always adhering to the scientific method of system engineering is the magic weapon for the rapid development of China’s space industry.

　　Spacecraft development is an extremely complex system engineering, which has the characteristics of great technical difficulty, high quality risk, many factors involved and complicated organization and management. Eliminating all difficulties to ensure success is the last word, and ensuring success has always been the eternal pursuit of researchers.

　　Over the past 50 years, the Institute has gradually established a scientific and perfect spacecraft development system based on system engineering theory. In the initial stage of the space industry, the Institute insisted on pre-research generation, development generation and production generation, and initially established the China spacecraft development management system. From the late 1970s to the mid-1980s, model development changed from project research to engineering development management. The Institute established a designer system and an administrative command system, and initially standardized the satellite development procedures. Since the middle and late 1980s, space technology has been fully applied to engineering, and the theory and practice of systems engineering have also entered a stage of all-round development. The Institute has carried out research and development contract management with technical and economic integration, and formed a series of systems engineering management ideas and methods.

　　Since the beginning of the new century, China’s space industry has entered a stage of rapid development, and the development of space technology has entered a critical period to achieve a major breakthrough. The number of annual launches and the number of aerospace models under research have hit record highs, which has brought great challenges to model research and production and quality management. The Institute systematically carried out the construction of three capacity projects, namely, "innovation leading", "aerospace intelligence building" and "quality improvement", and formed a scientific research and industrialization management mode of aerospace business in line with the concept of system engineering, as well as many effective scientific research and production management mechanisms and quality management rules and regulations, which laid a solid foundation for the smooth development of model development, continued to promote the transformation and upgrading of spacecraft development mode, and created a new chapter in the transformation and upgrading of China’s space research and production mode.

　　For decades, generations of researchers have always adhered to the scientific method of systems engineering, ensured the complete success of the model launch mission with scientific management methods and a high degree of vigilance, and promoted the steady development of the space industry. Adhering to the scientific method of systems engineering is the magic weapon for the rapid development of China’s space industry.

　　● It is an inexhaustible source for the rapid development of China’s space industry to always adhere to the strategy of strengthening the enterprise through talents and continuously inherit and carry forward the space spirit.

　　Behind every brilliant aerospace achievement, there are a large number of aerospace talents who love the motherland, selfless dedication and innovation.

　　The aerospace spirit is an important part of the Chinese national spirit and a powerful spiritual driving force for the leap-forward development of the aerospace industry. In the process of composing China’s space career for more than 50 years, the Institute has become an important birthplace of the traditional spirit of space, the spirit of "two bombs and one satellite" and the spirit of manned space flight. During the vigorous development of the space industry, the connotation of the space spirit pedigree has been continuously enriched, and the spirit of Beidou and the spirit of exploring the moon have been condensed and formed. They are the continuous enrichment, perfection and sublimation of the space spirit, which has injected more abundant model characteristics and era connotation into the space spirit pedigree.

　　The aerospace spirit has inspired generations of researchers to move from victory to victory. They have been deeply integrated into the blood and soul of the people in the institute, and they are a powerful spiritual driving force for the institute to make concerted efforts to promote the development of the space industry. It is with such a top talent team and brilliant aerospace spirit that the researchers can further overcome difficulties, persevere, keep their motivation and continue their struggle. We firmly believe that it is an inexhaustible source for the rapid development of China’s space industry to always adhere to the strategy of strengthening enterprises through talents and to always inherit and carry forward the space spirit.

　　2. Grasp the development direction of China’s space industry and accelerate the development of China from a space power to a space power.

　　The 19th National Congress of the Communist Party of China has comprehensively planned and deployed a grand blueprint for building a socialist modernization power and a world-class army by the middle of this century. The Institute will grasp the development direction of China’s space industry, Do not forget your initiative mind, keep in mind its mission, forge ahead into the future and continue to struggle, and lay a solid foundation for building China into a space power in 2045.

　　● improve the position, grasp the direction, and strive to create a new situation of the party’s overall leadership.

　　The research institute will further improve its political position, continuously strengthen its political and ideological construction, earnestly enhance the "four consciousnesses", strengthen the "four self-confidences" and achieve the "two safeguards", resolutely implement the instructions of the Supreme Leader General Secretary on the construction of a space power, engrave the party’s initial heart and mission in mind, and unite the vigorous forces for building a space power. To give full play to the leading role of the Party, the Party Committee of the Institute will resolutely implement the requirements of "two consistency", take the difficulties of reform as the focus of work, take the key of development as the foothold of work, persist in planning the future from the strategic height of building a space power, constantly study new changes and solve new contradictions, and earnestly shoulder the responsibility and burden of promoting the construction of a space power. Further deepen the comprehensive and strict administration of the party, constantly optimize the party building work system, compact the responsibility of managing the party, promote the grassroots party organizations to meet the standards, improve the supervision system, deepen the anti-corruption work, create a new situation in party building in the research institute, and provide a strong guarantee for promoting the development of space undertakings. Further strengthen the guarantee role of ideological and political work, carry out in-depth education on ideals and beliefs, effectively solve the concerns of employees, enrich the spiritual and cultural life of employees, give play to the role of matrix three-dimensional ideological and political work, create a strong atmosphere of "developing space industry and building a space power", and further strengthen the confidence and determination of building a space power.

　　● Be determined to study and think hard, and strive to create new glory in China’s space industry.

　　Major national projects have entered the critical period of implementation, and the task of developing and launching high-density aerospace models has become the new normal. In the face of major historical opportunities and severe challenges, the research institute will firmly build the belief of "pledging success and winning all the victories", advance layout, overall planning, scientific organization, and clear grasp, and go all out to complete the aerospace model tasks represented by major national projects and fulfill the mission of strengthening the country.

　　The research institute will go all out to complete major scientific and technological special construction tasks such as Beidou navigation global networking, the third-phase sampling return of the lunar exploration project, and the high-resolution Earth observation system; Make overall plans to promote the construction of space infrastructure and realize integrated and networked development; Build a near-earth orbit space station and realize its operational operation; Complete major scientific and technological projects of spacecraft on-orbit maintenance and service system; Realize the deep development and utilization of space resources, provide strong support for China’s industry voice and dominance in international space affairs, and strive to create new glory in China’s space industry.

　　● Driven by innovation and strengthened by new plans, we will strive to create new kinetic energy for the development of China’s space industry.

　　General Secretary of the Supreme Leader stressed that the aerospace industry should "persist in implementing the innovation-driven strategy, boldly innovate, be determined to reform, be down-to-earth and bravely climb the peak". The direction of some important fields of space technology in China is in a critical period of transformation from following the main direction to running and leading in more fields. We must keep a close eye on the world-class level and direction, face challenges directly and promote innovation and development.

　　The research institute will adhere to independent innovation, take the "innovation-led" project as the starting point, and focus on four aspects: strategic planning, system research, core specialty and application foundation to accelerate the improvement of innovation ability. Facing the country’s major strategic needs, we will continue to carry out strategic planning, deepen the road map demonstration of space powers, and accelerate the construction of a strategic planning demonstration system; Facing market competition, tackling key problems thoroughly and systematically, facing sustainable development, and accelerating the breakthrough of core professional technology; Focus on the long-term, strengthen applied basic research, constantly identify and cultivate subversive and intercepting cutting-edge technologies, lead the development direction of space technology, and grasp the initiative of space development.

　　● Reform and innovation, transformation and upgrading, and write a new chapter in the high-quality development of China’s space industry.

　　Comprehensively deepening reform is always on the road. As the backbone of the national space industry, the Institute will further clarify the strategic objectives and key measures, and further enhance its ability to "ensure success with high quality, complete tasks with high efficiency, and promote the construction of a space power and national defense with high efficiency". At the same time, the research institute will promote the transformation and upgrading of scientific research and production mode as a whole; Promote the establishment of a modern enterprise system with parent-subsidiary companies as the basic form, and complete the transformation of public institutions into enterprises; Grasp the overall requirements of high-quality development, strengthen risk management and prevention capabilities, continue to promote slimming and fitness, improve quality and efficiency, and improve management level; Adhere to the international development strategy, continue to expand market channels, promote international operation, and fully promote the high-quality development of space industry.

　　● Give priority to talents and cultural people, and promote the role of aerospace spiritual culture in casting souls to a new level.

　　The new era, new orientation, new mission and new goal call for a more outstanding talent team, a richer and better pedigree of aerospace spirit and a more powerful mechanism for ideological and political work.

　　The Institute will make great efforts to innovate and explore new ideas and methods to carry out ideological and political work, and take the theme education of "Do not forget your initiative mind, Keep in mind the mission" as an opportunity to further strengthen the ideals and beliefs of the cadres in the hospital. Efforts will be made to cultivate and practice socialist core values and continue to spread aerospace characteristic value concepts such as "focusing on the country". Efforts will be made to strictly implement the responsibility system for ideological work, firmly grasp the leadership and initiative of ideological work, and unite and lead the broad masses of workers to devote themselves to building a space power.

　　It is the concrete practice of the party’s initial heart and mission in the research institute to strengthen the belief of serving the country by space and the mission of strengthening the country by space, and it is also the responsibility of all the researchers! To build a space power, China Academy of Space Technology will thoroughly implement the Supreme Leader’s Socialism with Chinese characteristics Thought in the new era, grasp and follow the development law of China’s space industry, keep in mind Do not forget your initiative mind’s mission, continue to struggle for building a space power in an all-round way, and continue to write a new chapter on the journey of realizing the goal of "two hundred years" and realizing the great rejuvenation of the Chinese dream by the Chinese nation.

　　 (Author: Theoretical Learning Center Group of Party Committee of China Academy of Space Technology)

Percutaneous argon-helium knife treatment of liver cancer is one of the non-surgical treatment methods in recent years, which indicates that the treatment of liver cancer has entered a new stage of cryotherapy. Professor Yang Yongping, director of the Department of Hepatology and Medicine, Fifth Medical Center, General Hospital of Chinese People’s Liberation Army, shared the cryoablation treatment of liver cancer in the first multi-disciplinary cooperation forum of Anhui Province, and the platform of treating liver cancer with sincerity specially compiled the essence for readers.

Overview of liver cancer

In China, hepatocellular carcinoma (HCC) is the fifth largest malignant tumor and the second largest tumor-related death cause, with a five-year survival rate of only 14.2%. How to treat liver cancer scientifically and benefit the long-term survival of patients is an important clinical problem, and it is also the gold standard to measure the treatment level of medical units. In 2022, the updated guidelines for prognosis and treatment strategy of clinical liver cancer (BCLC) in Barcelona proposed that patients with HCC should be accurately evaluated individually. Doctors need to fully consider the scope and load of the tumor, the nutritional status and human performance of the patient, complications, age, etc., and formulate individualized treatment methods for the patient.

No matter what stage the patient is in, local ablation is an important treatment. At present, a variety of mature local ablation treatment techniques for liver cancer have been formed, including radiofrequency ablation, microwave ablation, cryoablation, irreversible electroporation (nano-knife) and so on.

Overview of cryoablation therapy

Cryoablation therapy has experienced a long development process. In 1800, James Arnott discovered that the mixture of ice and salt could delay the progress of breast cancer, uterine cancer and skin cancer. In 1950, liquid nitrogen and dry ice were used to treat different kinds of diseases, especially benign skin lesions. In 1961, Cooper and Le introduced the first automatic cryosurgical equipment, but it used liquid nitrogen as refrigerant, which had many complications and was only used in laparotomy. In the 1970s and 1980s, liquid nitrogen needle was used to treat prostate hypertrophy and prostate cancer, but the cryoablation technology was stagnant due to many complications. In the 1990s, intraoperative ultrasound monitoring of freezing process was used in surgery by scholars, and argon was studied as the refrigerant. In 1998, the third generation cryosurgery system (Argon-Helium cryosurgery system) came out in the United States, which used argon as the refrigerant and helium as the heat medium, bringing revolutionary progress to minimally invasive cryosurgery. In 2000, cryotherapy entered American medical insurance. In 2003, the World Congress of Targeted Cancer Therapy recommended cryoablation as the first choice for advanced lung cancer and liver cancer. In 2010, the standardized diagnosis and treatment of liver cancer promoted by the Health Planning Commission listed cryoablation as a local treatment for liver cancer. In 2016, after more than 10 years of unremitting efforts, Professor Yang Yongping’s team led the overall and comprehensive innovation and development of percutaneous cryoablation of liver cancer at home and abroad, changed the international prejudice on cryoablation of liver cancer, turned the small path into the big road, the irregular into the norm, and the unpopular into the hot spot.The technological innovation of cryoablation of liver cancer won the first prize of Beijing Science and Technology Progress Award. In 2018, 2019 and 2020, experts’ consensus on imaging-guided cryoablation for lung cancer, experts’ consensus on imaging-guided cryoablation for bone and soft tissue tumors, experts’ consensus on imaging-guided cryoablation for kidney cancer and experts’ consensus on imaging-guided cryoablation for liver cancer were released respectively. So far, NCCN, AASLD, APASL, EASL and other guidelines have recommended cryoablation for the treatment of primary liver cancer.

At present, the Department of Hepatology Medicine of the General Hospital of the Chinese People’s Liberation Army has become the largest medical center for treating liver tumors in the world last year, constantly exploring the innovation of cryoablation technology, adopting high-vacuum heat insulation technology, only destroying the tumor site without damaging the surgical path, and adopting multi-stage heat exchange technology, which makes the refrigerant utilization rate higher and the cooling rate faster, and it is easier to induce the frozen immune response of liver cancer patients, activate their own anti-tumor immunity and produce ectopic tumor inhibition.

Therapeutic mechanism and characteristics of cryoablation technology

The cryoablation area is composed of central coagulative necrosis area and peripheral tissue injury area with different degrees. The mechanism of rapid direct cell necrosis in the central area includes mechanical damage caused by ice crystal formation inside and outside the cell and osmotic damage caused by dehydration and rupture of the cell. Peripheral injury areas are mainly related to freezing-related secondary injuries, including hypoxia death of tumor tissue caused by blood embolism, apoptosis caused by reversible injury, and waterfall-like ectopic tumor suppression by stimulating immune regulation.

The characteristics of cryoablation technology include: ① clear treatment boundary, real-time monitoring under image, safe and reliable treatment; ② Treatment can stimulate human immunity and strengthen tumor treatment; ③ Physical therapy is non-toxic to human body, with extremely low side effects; ④ The treatment is painless, without general anesthesia and participation of anesthesiologists, and the treatment is convenient; ⑤ Not limited by the artificial pacemaker installed in the body; ⑥ Effective, suitable for lung cancer, liver cancer, kidney cancer, breast cancer, prostate cancer and other solid tumors.

In addition, ultrasound, CT, laparoscopy or intraoperative direct vision guidance can be used for cryoablation treatment, and the tumor position and the formation of ice hockey can be monitored in real time.

Current situation of percutaneous cryoablation of HCC

Before 2005, based on the previously reported clinical research results, there were many complications, such as bleeding, liver parenchyma frost crack, freezing shock, coagulation dysfunction and so on. International scholars were cautious about this technology. After 2005, percutaneous cryoablation for liver cancer has developed in China, especially with the publication of China’s continuous clinical summary and high-level evidence in the top international journal Hepatology. More and more clinical studies have confirmed that percutaneous cryoablation for liver cancer is safe and effective, and international scholars have a positive attitude.

Professor Yang Yongping’s team took the lead in conducting clinical research to determine the indications of liver cirrhosis-related HCC by percutaneous cryoablation. In this study, 1681 patients with liver cirrhosis-related HCC and 682 patients with advanced HCC were selected, and the indications and standards of complete cryoablation and selective cryoablation were established. It was proposed that the ablation volume of the target lesion should exceed 50% of the tumor volume or minimize the tumor load, relieve the symptoms caused by the tumor, improve the quality of life and prolong the survival time. The study also innovatively changed the percutaneous puncture to guide needle to locate the introduction of vascular sheath to solve the problem of bleeding after cryoablation, which has been cited by foreign counterparts for many times and suggested routine application.

Indications for complete cryoablation of liver cancer:

① The maximum diameter of a single tumor is less than 5 cm, or the number of tumors is less than 3, and the maximum diameter is less than 3 cm;

② Recurrence after surgical resection or other local treatment meets the conditions ①;

③ Child-Pugh A or B of liver function, bilirubin level ≤51.3μmol/L, or reaching this standard after medical treatment;

④ The blood coagulation function is good (prothrombin activity > 40%, platelet count > 30×109//L, using sheath hemostasis and packing system);

⑤ECOG PS ≤2；

⑥ Cirrhosis, including a history of chronic liver disease, with enlarged hepatic fissure/metacentric colon/esophageal varices/gastric varices/serrated liver surface, a history of upper gastrointestinal bleeding or ascites, and platelets < 100×109/L..

Indications for selective cryoablation of liver cancer:

① Single tumor with a maximum diameter of > 5cm or multiple tumors with a maximum diameter of > 3cm that cannot be surgically removed, regardless of whether there is tumor thrombus in portal vein;

② Child-Pugh A or B liver function classification, bilirubin level ≤51.3μmol/L or reaching the standard after medical treatment;

③ The blood coagulation function is good (prothrombin activity > 40%, platelet count > 30×109/L, using sheath hemostasis and packing system);

④QECOG PS ≤2；

⑤ Cirrhosis, including a history of chronic liver disease, with widened hepatic fissure/metacentric colon/esophageal varices/gastric varices/serrated liver surface, a history of upper gastrointestinal bleeding or ascites, and platelets < 100×109/L..

In addition, Professor Yang Yongping’s team innovatively established measures to prevent and treat complications of percutaneous cryoablation of hepatocellular carcinoma. In this study, 3321 patients were selected, and the measures of percutaneous cryoablation of liver cancer complications were established and verified (Table 1).

Table 1 Measures for Complications of Percutaneous Cryoablation of Liver Cancer

Moreover, the study has achieved encouraging clinical results, which increased the complete tumor ablation rate by 10.6%, reduced the local tumor recurrence rate by 30.3% in 5 years, and improved the 5-year survival rate by 16.6%.

Advantages of cryoablation in the treatment of hepatocellular carcinoma

Although cryoablation has distinct advantages over radiofrequency ablation (RFA), there is no RCT study in the past to directly compare the efficacy of ablation of liver cancer, especially the safety. Professor Yang Yongping’s team designed RCT study in five years to evaluate the efficacy and safety of percutaneous cryoablation and radiofrequency ablation of liver cancer. For the tumor, there were statistical differences in the local tumor progression rate between the two groups at 1, 2 and 3 years: 3%, 7% and 7% in the frozen group, respectively; The RF group was 9%, 11% and 11% respectively (P = 0.043). Subgroup analysis: For hepatocellular carcinoma with a diameter of > 3cm, cryoablation has a lower local tumor progression rate (cryoablation vs. RF: 7.7% vs. 18.2%, P=0.041). There was no statistical difference in the local tumor progression rate between 1-2cm (frozen vs. RF: 0% vs.2.4%, P=1.000) and 2.1-3.0cm (frozen vs. RF: 4.1%vs.7.1%, P=0.656). The results were published in Hepatology magazine and also in China.

Professor Yang Yongping’s team also confirmed that cryoablation of HCC can produce ectopic tumor inhibition, with the incidence of ectopic tumor inhibition of 6.3%, and the median survival time of patients with ectopic tumor inhibition was significantly prolonged. The mechanism is related to the down-regulation of PD-1/PD-L1 and regulatory T cells after ablation. In addition, argon-helium cryotherapy is effective for elderly HCC.

Unresolved problems in cryoablation of HCC

There are also many problems to be solved in the process of cryoablation for HCC in the future:

1. Does tumor cell ablation release specific tumor cell death signal?

2. How can freezing produce the best ratio of necrosis and apoptosis?

3. Are the cytokines released after freezing derived from tumor microenvironment or natural immune response, and what is their time sequence?

4. Will the functional essence and time sequence of antigen presenting cells that absorb necrotic tissue change after cryoablation?

5. What is the effect of cryoablation and absorption of necrotic tissue on the immunosuppressive function of the body? How to reduce the immunosuppression of the body?

Expert introduction

Professor Yang Yongping.

Chinese people’s liberation army general hospital No.5 medical center

Director, Department of Hepatology and Medicine, PLA General Hospital

Chief physician, professor, doctoral tutor

Silver Star of Science and Technology of the General Logistics Department, winner of special allowance of the State Council

Chairman of the Professional Committee of Liver Diseases of China Research Hospital Association

Director of China Hepatitis Foundation

Director of China Research Hospital Association

Vice Chairman of Liver Disease Professional Committee of Beijing Branch of Chinese Medical Association

Vice Chairman of Liver Disease Professional Committee of Beijing Society of Integrated Traditional Chinese and Western Medicine

Take the lead in the major special topics of the "Thirteenth Five-Year Plan and Twelfth Five-Year Plan" of the country, the key topics of the "Twelfth Five-Year Plan" of the army and the key topics of the Beijing Municipal Science and Technology Commission in integration of defense and civilian technologies; Won one national science and technology progress award, one first prize of Beijing science and technology progress award and six second prizes of military science and technology progress award.

Finishing/platform review/Professor Yang Yongping

This article is only for medical and health professionals to understand information, and does not represent the views of this platform. This information cannot replace professional medical guidance in any way, nor should it be regarded as medical advice. If the information is used for purposes other than understanding the information, the platform and the author shall not bear the relevant responsibilities.

　　Twelve years old is a happy age. You can go to school with a small bag on your back every day, cuddle up in your mother’s arms and eat delicious meals cooked by your mother &hellip; &hellip; But for 12-year-old Xiaomei (a pseudonym), all this seems to have become a long memory. After my mother went to Nanjing for business last year, she could only live in a cramped storage room of about 10 square meters in a residential area in Economic Development Zone of Suqian City, washing and cooking for her 16-year-old brother and 9-year-old sister, day after day. For her, the future is looking forward to growing up earlier. "Mom said that when she is 16 years old, she can go out and find something to do."

　　Yangzi Evening News reporter Gao Fengwen/photo

　　The girl cooks three meals a day according to the "recipe" on the wall

　　On the afternoon of January 19th, the reporter of Yangzi Evening News came to Xiaomei’s house according to the address provided by enthusiastic citizens. This is a storage room on the first floor of the community, only about 10 square meters. When you walk into the room, a musty smell comes.

　　Two 1.5-meter-wide beds are placed almost next to each other, occupying most of the room. Walking in from one end of the bed, the right hand side was separated from a bathroom with a washing machine outside. The prominent place in the corner of the room, with an area of about 1 square meter, became a kitchen. On the small round table, there was a single-headed gas stove with a range hood on it, and pots and various items were randomly placed next to it. The iron pot was open, and there was a bowl of hot sauce on the empty and dirty chopping board.

　　There is an air conditioner hanging on the wall opposite the bed. Under the air conditioner, there is a piece of stained paper, the edge of which has been curled. On the paper, there are three meals a day arranged by the mother for the children:

　　Breakfast 7&mdash; 9 (Reporter’s Note: Meal time) (only one can be selected): milk +2 eggs, millet porridge +2 eggs, millet porridge +4 steamed buns (pure meat);

　　Chinese food 11&mdash; 13, pancakes+scrambled eggs with tomatoes, steamed bread+fried meat with onions, pancakes+fried mung bean sprouts with leeks, fried shredded pork with celery+pancakes, and 4 steamed buns;

　　Dinner 5&mdash; 7. One cucumber, one apple, one tomato and half pitaya.

　　Xiaomei said that at first, it was my brother who cooked the meal. Later, my brother went out to find something to do, and he began to cook for his brother and sister according to the "recipe" for three meals a day prescribed by his mother. Every time my mother leaves, she will specially cook a bowl of hot sauce for the three brothers and sisters, which has become the next meal for the three brothers and sisters for a month.

　　On the morning of 20th, the reporter of Yangzi Evening News came to the community where the children lived again, only to see the door locked and the sisters playing with the children in the community.

　　"My sister’s cooking is delicious. Let’s have dinner at my house at noon." Near noon, my sister sent an invitation to a six or seven-year-old girl. Then, the three men walked into the house and the door closed.

　　Parents divorced and all three children dropped out of school.

　　In an interview with reporters, Ms. Li, the mother of three children, happened to have a rest and rushed back to Suqian to take care of her children. "I usually take four days off a month and come back once to see them. This time I only come back once every two months."

　　Ms. Li said that she is an Anhui native. After she married Fengxian County, Xuzhou, she gave birth to three children. The older one is a boy, now 16 years old, and the two younger ones are girls. Xiaomei is now 12 years old and the youngest child is only 9 years old. Ms. Li said that due to family breakdown, among the three children, the older child dropped out of school in the first grade, Xiaomei dropped out of school in the sixth grade, and the youngest daughter was forced to drop out of school just after entering the first grade.

　　Last May, she came to Suqian with three children and started her life again. Ms. Li rented a storage room in the community at the monthly price of 450 yuan, and the family settled down temporarily. Soon, Ms. Li found a job selling cosmetics, going out early and returning late every day, earning more than 2,000 yuan a month. Last October, Ms. Li went to Nanjing to do cosmetics business and earned more than 3,000 yuan a month. Every month, she will transfer more than 1,000 yuan to her son through WeChat transfer, which is the monthly living expenses of the three brothers and sisters.

　　For Ms. Li, although people have arrived in Nanjing, her heart is still concerned about Suqian’s three children. "I call several times a day, send WeChat, tell her how to cook, and ask if the clothes are hanging &hellip; &hellip;”

　　After learning about this special family, the residential property was very sympathetic and began to do some odd jobs with the brother of three children. "On the one hand, it can take care of him, guide him, prevent him from being adversely affected, and go to the wrong road. At the same time, it can also make him supplement some household expenses."

　　So, after her brother went out every day, 12-year-old Xiaomei took over the burden of cooking.

　　The police are worried about safety.

　　On the afternoon of 19th, when interviewed by Yangzi Evening News reporter, the police in the jurisdiction happened to visit Xiaomei’s home. "At the end of last year, we found this special family in the community investigation visit." The police said that at first, the family was very resistant to outsiders and could not communicate. After many times of communication, they learned something. "I am very worried about their safety. I can only come and walk more, and the community security guards will take care of them."

　　conversation

　　"I want to go to school but I don’t want to go to school"

　　Reporter: Do you cook?

　　Xiaomei: Do it. My brother’s cooking is not delicious.

　　Reporter: So you can cook?

　　Xiaomei: My mother always calls me to tell me what to do before cooking.

　　Reporter: Do you sleep after dinner at night?

　　Xiaomei: When my brother comes back at night, let us sleep after dinner. But I can’t sleep. My sister always cries for hours, which wakes me up and won’t fall asleep until 12 o’clock.

　　Reporter: Usually all the children in the community go to school. What do you do?

　　Xiaomei: Go home to sleep, and then get up to buy food and cook.

　　Reporter: Do you want to go to school?

　　Xiaomei: Yes and no. I want to go to school because I am bored at home, and I don’t know a word out of ten when I read a book, and no one teaches me. I don’t want to go to school, because I have to board and live at school, and my sister goes to school, so there is no one to pick me up.

　　Reporter: Do you want your mother to accompany you?

　　Xiaomei: Yes! But it’s no use, because my mother is going out. How can we live without going out?

The new semester has arrived, and friends should start studying hard! In English learning, many grammatical problems will become a problem. Xiaobian will publish some articles about English spelling, punctuation, grammar, vocabulary description and writing tips one after another this semester, hoping to help English learning.

There are several differences in spelling between British English and American English. These differences are often due to the fact that British English often retains the spelling of the source language, such as French, while American English adjusts the spelling in order to correctly reflect the actual pronunciation of words.

If you want to write something for the British, you should only use British spelling. In a few cases, American spelling is also acceptable in British English, especially words ending in -ize/-ization. In this case, -ise/-isation or -ize/ization can be used in British English, but it is important to be consistent in an article and use one spelling from beginning to end.

Today, we list several major spelling differences and compare the spelling differences between British and American English.

1) Words ending in–re: English ends in–re; American style ends with -er.

2) Words ending in -our: English ends in -our; American usually ends with -or.

3) Words ending in -ize or -ise: In British English, verbs spelled with -ize or -ise are acceptable; In American English, it is always spelled -ize.

4) Words ending in -yse: In British English, this kind of verb is written as-yse; American English is always writing -yze.

5) Words ending in vowel+letter L: In British spelling, when a verb ends in vowel+letter L, if you need to add vowel, you will double write L; In American spelling, there is no need for double writing.

6) diphthongs’s spelling: In British English, diphthongs ae or oe are both two letters; In American English, they are all written as a letter e.

Tip: In American English, some specific words, such as archaeology, still retain the spelling of ae. This is the standard spelling method, and if it is only written as e, it is archeology, which is usually acceptable.

7) Nouns ending in -ence: nouns ending in -ence in British English are written as -ense in American English.

8) Nouns ending in–OGUE: English spelling is–OGUE; American spelling can be -og or -ogue.

This difference is not difficult to grasp. In American English, the writing of analogue is acceptable, but not universal; The spelling of catalog has become the standard form in the United States, and the writing of catalog is not uncommon; Dialogue is still more popular than dialogue.

Welcome to pay attention to WeChat WeChat official account: OxfordDictionaries and Weibo: @ Oxford Dictionaries Weibo.

(Source: Oxford Dictionary Editor: Julie)