Juvenile science festival held in Yinchuan, NW China's Ningxia

Source: Xinhua| 2019-09-21 21:36:02|Editor: Li Xia
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CHINA-NINGXIA-YINCHUAN-EDUCATION-JUVENILE SCIENCE FESTIVAL (CN)

A contestant takes part in an unmanned aerial vehicle (UAV) obstable course race during a juvenile science festival in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Sept. 21, 2019. (Xinhua/Feng Kaihua)

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