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Chinese-made super-sized TBM starts work through Yangtze River 

          

          
Source: Xinhua| 2019-12-26 17:27:31|Editor: huaxia

          

                
          

          

          

          

          
    

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          With a diameter of 15.03 meters, a Chinese-made tunnel boring machine begins excavating a tunnel through the Yangtze, China's longest river.
           

          

          

          
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