亚洲欧美成人一区二区三区_av免费网址在线观看_国产浓毛大泬熟妇视频在线_久无码久无码av无码_男人的天堂2018无码_亚洲中文字幕无线无码_色多多深夜福利免费观看_国产永久精品大片WWWAPP_精品无人码麻豆乱码1区2区_国产xxxxx在线观看

banner
Gansu Zheda Liujia Gorge Bridge
2017-12-23 10:06:20


Liujia Gorge Bridge is a longest single span bridge in Gansu so far, longest suspension bridge in southwest China, the most narrow bridge among the same scale bridges in China too. It adopts a steel pipe concrete gate type tower with 536m main span and 15m deck.


甘肅折達(dá)劉家峽大橋.jpg