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          China showcases latest advances in metrology at Hunan exhibition
          
      
          
      
          
        
          By LI MUYUN in Changsha and ZHU YOUFANG in Hengyang, Hunan | 
          chinadaily.com.cn |
          Updated: 2025-11-11 20:13
        
        
          
          
          
          
        

      
          


      
          
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   The 2nd Metrology Instrumentation and Equipment Exhibition opens in Hengyang, Hunan province, on Tuesday. [Photo by Zhu Youfang / chinadaily.com.cn] 
 
           

           

        
      
          
      
      
      
          
        
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