久久99久久99精品免观看,97视97视频,久久99免费视频,六月丁香色婷婷,另类欧美视频二区,第一福利视频,国产福利在线

Xicheng High-speed Railway, also known as Xicheng Passenger Dedicated Line, is a high-speed railway connecting Xi ' an, Shaanxi Province, China and Chengdu, Sichuan Province. It is one of the main channels of the ' eight vertical and eight horizontal ' high-speed railway revised in 2016. It is the first high-speed railway crossing the Qinling Mountains in China.    Xicheng high-speed railway was officially opened on October27,2012.   On December 6, 2017, the whole line was officially opened.    Xi ’ an-Chengdu high-speed railway is from Xi ’ an North Station to Chengdu East Station, with a total length of 658 km and 22 stations. The designed maximum speed is 250 km / h.  As of January 2018, the speed of Xicheng high-speed railway is 250 km / h.    The display screen and server of our department ’ s winning bid for this project in 2016 are supplied to the Bureau of Railway Construction and Electrification, which is also the first project of our department to participate in high-speed rail.