5G tech wows visitors at Beijing fair

        

      

      

        
          
          chinadaily.com.cn |
          Updated: 2020-09-09 11:00
          
          
          
          
        


        
      

      

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   A man shows a smart blackboard to a visitor at the 2020 China International Fair for Trade in Services in Beijing. The smart blackboard enables livestreaming, audio recording and multimedia course presentation in class. [Photo/Xinhua] 
 
 

 

        


        
        
      

        
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