99re国产精品,性欧美在线,看a级黄色毛片,三级国产毛片,亚洲欧洲综合av,最近好看中文字幕日产,精品一二三区在线观看

Artificial floating island set for water purification in east, southwest China

Source: Xinhua| 2018-07-26 07:30:55|Editor: Liangyu
Video PlayerClose

#CHINA-ARTIFICIAL FLOATING ISLAND-WATER PURIFICATION (CN)

A staff worker cleans up trash beside an artificial floating island set in a reservoir for water purification in Beibei District of Chongqing Municipality, southwest China, July 25, 2018. (Xinhua/Qin Tingfu)

   Prev 1 2 3 4  

KEY WORDS: water purification
EXPLORE XINHUANET
010020070750000000000000011100001373484801