A researcher works in Jinping Underground Laboratory in southwest China's Sichuan Province on December 24, 2014. The lab is located at 2,400 meters under the surface of Jinping Hydropower Station and opened in December 2010. (Photo/Xinhua)
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A researcher works in Jinping Underground Laboratory in southwest China's Sichuan Province on December 24, 2014. The lab is located at 2,400 meters under the surface of Jinping Hydropower Station and opened in December 2010. (Photo/Xinhua)
