A high-speed WJ-600A/D unmanned aerial vehicle (UAV) is displayed at the 10th China International Aviation & Aerospace Exhibition in Zhuhai, South China's Guangdong province, Nov 9, 2014. The 10th China International Aviation & Aerospace Exhibition, which takes place in Zhuhai from Nov 11 to 16, features various UAV drones for both military and civilian use. [Photo / Xinhua]
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