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 



 


        




        



        

        



        

        

        

        
China's unmanned submersible "Hailong III" completes deep sea test 

        

        
 Source: Xinhua| 2018-03-25 20:18:49|Editor:  Mengjie 

        

              
        

        

        

        

        

        
    

        Video PlayerClose
        

        

        

        CHINA-UNMANNED SUBMERSIBLE-HAILONG III-DIVE(CN)
        

        Unmanned submersible "Hailong III", on board the Chinese research vessel Dayang Yihao (Ocean No. 1), is examined by staff members of the scientific ocean expedition before being put into the sea for a deep sea testing on March 24, 2018. The submersible completed a 1,690-meter-deep sea testing in West Pacific Ocean, March 25, 2018. (Xinhua/Chen Hao)
        

        

        

        


           Prev 1 2 3 4 5 Next  
        

        

        

        
 

        

        

        
KEY WORDS: submersible

              
        

        



        


        

        


        

        

         EXPLORE XINHUANET 
        


        

        


              
        

 


        010020070750000000000000011100001370644411