A J-10 fighter jet attached to an aviation brigade with the air force under the Chinese PLA Southern Theater Command speeds up to take off during a day-and-night flight training exercise. (eng.chinamil.com.cn/Photo by Xiao Rui)近日，南部战区空军航空兵某旅组织跨昼夜空战对抗飞行训练。（英文中国军网/肖锐 摄）