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          Four Chinese irrigation projects granted world heritage status
          
      
          
      
          
        
          
          Xinhua |
          Updated: 2020-12-09 14:35
        
        
          
          
          
          
        

      
          


      
          
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   The Longshou Canal and Ancient Luohe River Irrigation district in Shaanxi province is said to involve the first underground canal in China's history, making use of the shaft-tunnel method. 
 
           

           

           
          
        
      
          
      
      
      
          
        
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