Robots employed in China's railway system during Spring Festival travel rush
    
        
    
      
    
      
    
        
          
          Xinhua |
          Updated: 2019-02-21 08:43
          
          
          
          
        


        
      
    
      
    
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   A robot scans and checks the bottom of a bullet train in Zhengzhou, Central China's Henan province, on Feb 20, 2019. [Photo/Xinhua] 
 
     

     

          
        
    

        
        
      
    
        
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