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    New milestone: Drone delivers mail across sea in E China
    

    

    

      
    
             
    
        
    
        
    
          
        
    
      
    
      
    
      

      
    
      
    
                        New milestone: Large fixed-wing UAV delivers mail across the sea in China for the first time.
  
    
 
            
      
    

    

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