19th National Science and Technology Week starts

Source: Xinhua| 2019-05-20 07:47:25|Editor: Liangyu

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A child participates in a glow discharge experiment at the Binzhou Science and Technology Museum in Binzhou, east China's Shandong Province, May 19, 2019. The 19th National Science and Technology Week is held from May 19 to 26. (Xinhua/Zhang Chunfeng)