Maintenance men assigned to an aviation brigade of the air force under the PLA Southern Theater Command conduct pre-flight check on a fighter jet before a round-the-clock training exercise on Sept. 8, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)
9月8日，南部战区空军航空兵某旅组织跨昼夜飞行训练，部队全天候作战能力得到有效提升。王国云
