Aerial photo taken on Oct. 21, 2016 shows the Lingang wetland park in Tianjin, north China. The wetland park, covering an area of 170,000 square meters, purified the waste water and rain water for municipal use. (Xinhua/Yue Yuewei)
Aerial photos of Lingang wetland park in N China
Source: Xinhua
2016-10-21 20:41:03
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