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Unmanned devices displayed at Airshow China 2021 (4)
(Xinhua) 14:48, September 30, 2021
Photo taken on Sept. 29, 2021 shows a Yunzhou unmanned speed boat displayed at the 13th China International Aviation and Aerospace Exhibition, or Airshow China 2021, in Zhuhai, south China's Guangdong Province. (Xinhua/Deng Hua)
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(Web editor: Shi Xi, Liang Jun)
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