Photo taken on Nov. 18, 2016 shows a police unmanned aerial vehicle during the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province. (Xinhua/Mao Siqian)
Unmanned equipments seen at 18th China Hi-Tech Fair in Shenzhen
Source: Xinhua
2016-11-18 22:15:32
Photo taken on Nov. 18, 2016 shows a police unmanned aerial vehicle during the 18th China Hi-Tech Fair in Shenzhen, south China's Guangdong Province. (Xinhua/Mao Siqian)
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