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Farmers add pesticides into a drone in wheat fields in Jinghe Town, Hejian City of north China's Hebei Province, April 12, 2018. (Xinhua/Zhu Xudong)
Drone sprays pesticide in wheat fields, north China
Source: Xinhua| 2018-04-12 18:44:19|Editor: Liangyu
KEY WORDS: drone
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