7月中旬，北部战区航空兵某旅组织多机种空战强攻训练，锤炼指挥员对多机型的指挥能力和飞行员之间协同能力。图为机务人员正在作业。（英文中国军网、英文国防部网/罗嵘、熊国胤、王福祥 摄影报道）
A maintenance man assigned to an aviation brigade under the PLA Northern Theater Command wipes the canopy of a fighter jet before an intensified flight training exercise in mid July, 2021. (eng.chinamil.com.cn/Photo by Luo Rong, Xion Guoyin and Wang Fuxiang)
