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Why Beijing's new mega airport is green and eco-friendly 

    

    
 Source: Xinhua| 2019-06-30 15:57:13|Editor:  Yurou 

    

          
    

    

    

    

    

    
    

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Click to check out secret eco designs behind the construction of Daxing International Airport in Beijing, which is?the world's largest.?#AmazingChina

     

    

    

    
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