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Staff members participate in a drill that deals with emergencies in the transportation of inflammable liquids in Lanzhou, northwest China's Gansu Province, June 20, 2018. (Xinhua/Li Xiao)
Staff members participate in a drill that deals with emergencies in the transportation of inflammable liquids in Lanzhou, northwest China's Gansu Province, June 20, 2018. (Xinhua/Li Xiao)