A maintenance man assigned to an aviation brigade of the air force under the Chinese PLA Southern Theater Command conducts pre-flight inspections on a J-10 fighter jet prior to a day-and-night flight training exercise. (eng.chinamil.com.cn/Photo by Shang Jieyan)
近日，南部战区空军航空兵某旅开展跨昼夜飞行训练。图为机务官兵检查战机。（英文中国军网/尚洁岩 摄）