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English >> China Society

Mobile app tells you Beijing's environment (5)

（）  10:24, June 06, 2013  

Combined photo shows that the API of a Tsinghua University is 155 at 6 p.m. on April 20, 2013, which indicates that the air quality is not good; the photo at the bottom shows that the API of Tsinghua University is 85 at 3 p.m. on April 20, 2013, indicating the air quality is good. (Photo/Xinhua)

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（Editor：WangXin、Gao Yinan）

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