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          Various activities held across China to greet annual day for science popularization
          
      
          
      
          
        
          
          Xinhua |
          Updated: 2018-09-16 07:17
        
        
          
          
          
          
        

      
          


      
          
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   Children experience acoustics devices during a science popularization activity in Langfang, North China's Hebei province, Sept 15, 2018. A variety of activities were held across the country to greet the annual day for science popularization in China. [Photo/Xinhua] 
 
           

           

        
      
          
      
      
      
          
        
          
          
        

        
          
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