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    First high-speed train operating in mountains offers 4G coverage
    
      
    
      
    
        
          By Jin Dan | 
          chinadaily.com.cn |
          Updated: 2017-11-09 11:32
        
        
          
          
          
          
        

      
    


      
    
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    A railway staff member shows the equipment used for telecommunication on Xi'an-Chengdu high-speed railway line in Qinling Mountains tunnel. [Photo/Chinanews.com]
    		 
  
     
      

    
        
      
    
      
      
      
    
        
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