Xinjiang Institute of Ecology and Geography of CAS holds Public Science Day event

Chen Haiyan, staff member from Xinjiang Institute of Ecology and Geography of Chinese Academy of Science, explains the working principles of isotope function tester to the visiting children during the academy's 15th Public Science Day event in Urumqi, northwest China's Xinjiang Uygur Autonomous Region, May 19, 2019. (Xinhua/Wang Fei)