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A drone put into use by Chengguan, urban management officers, in Shijiazhuang City, Hebei Province, March 7, 2019. The drone, with a wingspan of four meters, is used to take aerial photos of an area 138 square kilometres in size, to aid Chengguan in spotting open-air garbage and unapproved construction. (Photo: China News Service/Zhai Yujia)
A drone put into use by Chengguan, urban management officers, in Shijiazhuang City, Hebei Province, March 7, 2019. The drone, with a wingspan of four meters, is used to take aerial photos of an area 138 square kilometres in size, to aid Chengguan in spotting open-air garbage and unapproved construction. (Photo: China News Service/Zhai Yujia)
A drone put into use by Chengguan, urban management officers, in Shijiazhuang City, Hebei Province, March 7, 2019. The drone, with a wingspan of four meters, is used to take aerial photos of an area 138 square kilometres in size, to aid Chengguan in spotting open-air garbage and unapproved construction. (Photo: China News Service/Zhai Yujia)
A drone put into use by Chengguan, urban management officers, in Shijiazhuang City, Hebei Province, March 7, 2019. The drone, with a wingspan of four meters, is used to take aerial photos of an area 138 square kilometres in size, to aid Chengguan in spotting open-air garbage and unapproved construction. (Photo: China News Service/Zhai Yujia)
A drone put into use by Chengguan, urban management officers, in Shijiazhuang City, Hebei Province, March 7, 2019. The drone, with a wingspan of four meters, is used to take aerial photos of an area 138 square kilometres in size, to aid Chengguan in spotting open-air garbage and unapproved construction. (Photo: China News Service/Zhai Yujia)
