Soldiers assigned to a chemical defense unit under the Chinese PLA Xinjiang Military Command conduct chemical hazard detection during a chemical defense training exercise at night on the plateau at an altitude of 4,500 meters. (eng.chinamil.com.cn/Photo by Li Yadong)近日，新疆军区某部防化分队在海拔4500米的雪域高原开展夜间防化训练。图为官兵侦毒。（英文中国军网/李亚栋 摄）