An HQ-17 surface-to-air missile system attached to an air defense detachment under a brigade of the Chinese PLA 77th Group Army launches a missile against a target in the air during a live-fire shooting assessment in the Gobi Desert. (eng.chinamil.com.cn/Photo by Ding Kai)  近日，陆军第77集团军某旅防空分队，在西北戈壁陌生地域开展了一场跨昼夜实弹射击考核。图为地空导弹发射瞬间。（英文中国军网/丁凯 摄）