对空警戒 meaning in Chinese

security against air attackantiaircraft security

General specification for air warning shipborne radar
舰载对空警戒雷达通用规范
General specification for ground - based air warning radar
地面对空警戒雷达通用规范
Flight test methods of air warning shipborne redar
舰载对空警戒雷达试飞方法
Tactic performance test methods for ground - based air warning radar
地面对空警戒雷达战术性能试验方法
Aircraft - warning radar
对空警戒雷达