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          Students in Wuhan perfect sand barrier machine
          
      
          
      
          
        
          By Liu Kun in Wuhan and Zhou Huiying | 
          chinadaily.com.cn |
          Updated: 2022-09-02 01:05
        
        
          
          
          
          
        

      
          


      
          
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   Students from Wuhan Electric Power Technical College in Hubei province display their high-efficiency sand barrier laying machine at a national mechanical innovation design competition. [Photo provided to chinadaily.com.cn] 
 
           

           

        
      
          
      
      
      
    

      
    
        

        

        
        
        
        
        

      
          

      

      
          

        
        
        
        
        
        
          
        
        
      
          
        
       
        
      
          
    
        
        
        
        
        
          

        
          
        
        

        
        
        
        
        
        
        
      
          
        
       
        
      
          
    
        
        
        

        
         
        

      
          
    
          
    
      
      
      
          
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