China

　　As we all know, China's high-speed rail construction technology can not be modest to say, has been at the forefront of the world. The construction of high-speed railway in other countries is not as early as in China for many years. However, with their wisdom and diligence, the Chinese people have achieved an all-round counter-attack. Although China's high-speed rail technology has been very developed. High-speed rail coverage in all regions is also increasing year by year. But in the process of building high-speed railway, there are still many difficulties. I don't know if you know that there is such a high-speed railway in the northeast. Its length is only 904 kilometers. Throughout the country, its length can only rank in the middle. However, its construction funds are in the first place. What causes such a result? Do you know the name of this high-speed railway?

　　This high-speed railway, which costs only 92.2 billion yuan, starts from Harbin in the north, passes through the major cities in the northeast, and finally reaches Dalian's Harbin-Dalian high-speed railway line. Why would such an ordinary city spend so much money? One of the most important points is environmental conditions. Everyone knows that the temperature in Northeast China is not normally cold in winter. Especially at this time, the temperature in southern cities is generally relatively high. But the snow in the Northeast has been drifting for days. Therefore, the northeastern high-speed railway track has to face a very serious problem. That's its anti-freezing property. If its anti-freezing performance is too poor, it can not survive in such a snowy place as the Northeast. Therefore, our scientists and technicians have been studying night and day how to improve the anti-freezing performance of high-speed rail. Harbin-Dalian High-speed Railway came out with its unique anti-freeze track, which is also the first high-speed railway line in the three northeastern provinces.

　　Harbin-Dalian High-speed Railway has been available for several years. Until now, no day has changed because of the low temperature and ice on the ground. Therefore, the high-speed railway running through the three northeastern provinces has brought tremendous convenience for people to travel. Especially during the Spring Festival holidays, when airplanes are not allowed to take off in the weather, it has become the first choice for people to travel in the three northeastern provinces. It can be said that it has made tremendous contributions to the whole three northeastern provinces. It also provides convenient transportation conditions for tourists from other provinces to travel all over the northeast. Of course Xiaobian would like to say here that this "high-speed rail on ice" passes through your hometown?