日本无限资源_福禄影院午夜伦_美国av毛片_亚洲自拍在线观看_激情亚洲一区国产精品_999久久久久

Swivel bridge rotated above Beijing-Guangzhou Railway in China's Henan

Source: Xinhua| 2019-08-30 21:30:42|Editor: Xiaoxia
Video PlayerClose

CHINA-HENAN-SWIVEL BRIDGE-ROTATION (CN)

Aerial photo taken on Aug. 29, 2019 shows the swivel bridge above the Beijing-Guangzhou Railway after rotation in Zhengzhou, capital of central China's Henan Province. The 317-meter-long and 38.7-meter-wide Dahe Road bridge, which lies across three railway lines, was successfully rotated to its targeted position on Thursday. The weight of the swivel bridge, which reaches 60,000 tonnes, refreshed the world record of its kind. China has adopted the swivel construction method in building many bridges. The method helps overcome the constraints of environment and traffic, while shortening the construction period. (Xinhua/Li An)

   Prev 1 2 3 4 5 6 7 8 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001383517251
主站蜘蛛池模板: 曰本不卡视频 | 国产精品精品久久久 | 婷婷色婷婷开心五月四房播播 | 伊人亚洲精品 | 夜色资源ye321在线观看 | 一个人看的www视频免费观看 | 91豆花视频 | 中文欧美日韩 | 直接看不卡的日本无码视频 | 人人dvd | 国产成人AV综合久久视色 | 夜夜躁狠狠躁日日躁202 | 国产精品JⅠZZ视频 av解说在线精品 | 欧美大片18禁AAA免费视频 | 久久久精品免费 | 性AV无码天堂VR专区 | 成人国产精品齐天大性 | 亚洲国内自拍愉拍 | 91大神xh98xh系列全部 | 韩国av一区 | 精品九九九九 | 国产精品免费久久影 | 女人体1963免费观看视频 | 日本三线免费视频观看 | 国产精品狼友视频第一页 | 免费日韩av | 久久精品无码免费不卡 | 国产精品无码免费热播 | 亚洲国产中文在线 | 国产熟熟| 欧美伦理大片 | 国产精品3 | 精品在线视频一区二区三区 | 操插视频 | 国产公开免费人成视频 | 成人123| 久久久久久国产一级毛片清晰版 | 真实国产精品视频400部 | 国产精品久久久久秋霞鲁丝 | 婷婷久久久亚洲欧洲日产国码AV | 国产成人啪精品视频免费软件 |