LIANYUNGANG, CHINA - JULY 14: (CHINA OUT) A staff of farmland belonged to Qingkou Agriculture Investment Company sprays pesticides on crops with Qi Mingjun's home-made helium balloon spraying machines on July 14, 2105 in Lianyungang, Jiangsu Province of China. Worker Qi Mingjun of a farmland invented helium balloons spraying machines to improve spraying areas for his machines would spray nearly 400,000 square meters. (Photo by VCG/VCG via Getty Images)
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