un. 積極防空 (active air defense 的復(fù)數(shù)) permanent air defenses: 固定防空體系rear air defenses: 后方防空地區(qū)redeployment of air defenses: 防空部隊變更部署stand-by air defenses: 常備防空體系handan municipal office for air defenses: 市人防辦公室下載手機詞典可隨時隨地查詞查翻譯
