Professor witnesses ottelia acuminata bloom again in Erhai Lake, SW China
    
        
    
      
    
      
    
        
          
          Xinhua |
          Updated: 2025-06-06 09:09
          
          
          
          
        


        
      
    
      
    
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   Kong Hainan speaks during a lecture on ecological civilization at Shanghai Jiao Tong University in East China's Shanghai, May 27, 2025. [Shanghai Jiao Tong University/Handout via Xinhua] 
 
     

     

          
        
    

        
        
      
    
        
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