1月6日,东部战区空军航空兵某旅组织部队开展跨昼夜飞行训练,锤炼飞行员作战能力。(英文中国军网/付敢 摄影报道) A J-11 fighter jet attached to an aviation brigade of the air force under the PLA Eastern Theater Command takes off from a military airfield during the round-the-clock flight training on January 6, 2020. (eng.chinamil.com.cn/Photo by Fu Gan)