亚洲综合中文字线观看看,中文欧美亚洲欧日韩一,2020年国产精品自线在拍,亚洲AⅤ日韩AV电影在线观看

      1. <dfn id="lnb6s"><var id="lnb6s"></var></dfn>

        1. Xinhua photos of the day

          Source: Xinhua| 2019-07-31 15:59:46|Editor: Wu Qin
          Video PlayerClose

          XINHUA PHOTOS OF THE DAY

          This combo photo shows two parts of a bridge above the Beijing-Guangzhou Railway before (top, photo taken on July 29, 2019) and after (bottom, photo taken on July 30, 2019) they are successfully rotated to their targeted positions using the swivel construction method in Baoding, north China's Hebei Province. China has adopted the swivel construction method in building many bridges to minimize the interference on the traffic below. The method helps overcome the constraints of environment and traffic, while shortening the construction period. (Xinhua/Mu Yu)

             Prev 1 2 3 4 5 6 7 8 9 Next  

          KEY WORDS:
          YOU MAY LIKE
          EXPLORE XINHUANET
          010020070750000000000000011100001382724461