免费精品AB,亚洲日韩性欧美中文字幕,鲁丝无码一区二区三区,精品久久久久久成人AV,看av免费毛片手机播放,精品国际久久久久999波多野,又黄又爽又刺激又色的视频,亚洲无线码一区二区三区在线观看

        First driverless subway line in west China under construction

        Source: Xinhua| 2019-07-31 20:30:00|Editor: Xiaoxia
        Video PlayerClose

        CHENGDU, July 31 (Xinhua) -- The first driverless subway line in the city of Chengdu, capital of southwest China's Sichuan Province, is under construction and the tunnel was dug through on Tuesday, according to the subway constructors.

        The line, named the No. 9 Line of Chengdu, is a project co-built by Chengdu Rail Transit Group Co., Ltd. and China Railway Group Ltd.

        Construction of the subway line started at the end of 2016, and it will become the first fully-automatic driverless subway line in west China.

        The phase-I project runs approximately 22 km, with a designed top speed of 140 km per hour and 13 stations.

        The subway line is scheduled to be operational by the end of 2020.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001382729481