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    New material allows deaf-mutes to speak
    
      
    
      
    
        
          By Deng Rui in Chongqing | 
          chinadaily.com.cn |
          Updated: 2021-03-26 14:23
        
        
          
          
          
          
        

      
    


      
    
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   Tao Luqi, a former PhD student at Tsinghua University, conducted groundbreaking scientific research that enables the deaf-mute people to speak through the use of electrically charged graphene, a new material that has emerged in recent years. [Provided to chinadaily.com.cn] 
 
     

    
        
      
    
      
      
      
    
        
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