<strike id="gegfc"><dl id="gegfc"></dl></strike>
<sub id="gegfc"></sub>


    

    <mark id="gegfc"></mark>
      



 


      




      



      

      



      

      

      

      
Maintenance workers work at Xinguanjiao Tunnel in NW China's Qinghai 

      

      
 Source: Xinhua| 2018-06-29 22:37:56|Editor:  Li Xia 

      

            
      

      

      

      

      

      
    

      Video PlayerClose
      

      

      

      CHINA-QINGHAI-XINGUANJIAO TUNNEL-MAINTENANCE (CN)
      

      Maintenance workers check the tracks at the Xinguanjiao Tunnel, the world's longest plateau rail tunnel, along the Qinghai-Tibet Railway in northwest China's Qinghai Province, June 27, 2018. With a length of 32.6 kilometers, the tunnel was put into operation at the end of 2014. (Xinhua/Hou Deqiang)
      

      

      

      


         Prev 1 2 3 4 5 Next  
      

      

      

      
 

      

      

      
KEY WORDS: tunnel

            
      

      



      


      

      


      

      

       EXPLORE XINHUANET 
      


      

      


            
      

 


      010020070750000000000000011100001372905701
         
中文字幕日韩无线码在线一区_制服肉丝亚洲中文字幕_日韩欧美无砖专区一中文字目_国产精品点击进入在线影院高清

      <strike id="gegfc"><dl id="gegfc"></dl></strike>
      <sub id="gegfc"></sub>
      

        

        <mark id="gegfc"></mark>
          
亚洲精品黄免费在线观看
|
青青青视频在线视频免费
|
中文字幕在线不卡v一二三区
|
日韩AV不卡一区二区
|
日韩激情电影一区二区在线
|
久久久久久综合岛国免费观看
|