久久国产精品视频观看,久伊人,国产在线观看性,精品一级电影,人人玩人人爽,中文字幕三级视频,国产一区二区免费在线观看视频

Strengthening

Location:Home>Strengthening

Monitoring system of bridge along the Olympic Games extension highway
2024-07-04 11:41:02

With a total length of about 116 kilometers, Yangao Expressway is the direct high-speed channel between the Yanqing Olympic Games in 2022 and Chongli Olympic Games in Zhangjiakou. There are 5 Bridges and 3 tunnels along the line, and more than 700 monitoring points are distributed, which is a whole-life monitoring system.


111.jpg

The Winter Olympic Games extended along the lofty speed