Maintenance men assigned to an aviation brigade with the air force under the Chinese PLA Eastern Theater Command conduct pre-flight inspections on J-16 fighter jets during a day-and-night flight training exercise. (eng.chinamil.com.cn/Photo by Zhu Yunlong) 近日，东部战区空军航空兵某旅紧贴实战组织开展多课目、跨昼夜飞行训练，进一步锤炼部队全天候作战能力。（英文中国军网/朱云龙 摄）