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active air defense 强调
Gruzovik, 军队	авиазенитная оборона
Gruzovik, 防空	активная противовоздушная оборона
军队	активная ПВО
炮兵	активная противовоздушная оборона
英语 词库
active air defense
军队, 后勤	Direct defensive action taken to nullify or reduce the effectiveness of hostile air action. It includes such measures as the use of aircraft, air defense weapons, weapons not used primarily in an air defense role and electronic warfare. (FRA)
美国	Direct defensive action taken to destroy, nullify, or reduce the effectiveness of hostile air and missile threats against friendly forces and assets (JP 3-01) 亦见 air defense

active air defense: 2 短语, 1 学科

航天

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