青年中文air defense exercise的意思
air defense exercise中文翻譯：
防空演習
air defense───n.防空; 空防
defense───n.防衛，防護；防御措施；防守；vt.謀劃抵御
exercise───n.運動；練習；運用；操練；禮拜；典禮；vt.鍛煉；練習；使用；使忙碌；使驚恐；vi.運動；練習
exculpation defense───免責辯護
exercise equipment───訓練設備
dapper defense───瀟灑的防守
turret defense───炮塔防御
nonpareil defense───非軍事辯護
echinodermata defense───棘皮動物防御
exercise is being held in the South China Sea, where both navies will conduct maritime surveillance, air defense and anti-submarine warfare exercises.───演習正在南海舉行，雙方的海軍都將進行海上監視，防空和反潛戰演習。
Starting Tuesday, Iran began to meet for five days, claiming to be the largest-ever in the history of Iran air defense exercise.───從本周二開始，伊朗開始舉行為期五天，號稱是伊朗史上規模最大的一次防空演習。
Russia is criticizing Iran for conducting an air-defense exercise near a nuclear plant Russia is helping to build.───伊朗在俄羅斯協助建設的一個核電站附近進行防空演習，俄羅斯表示批評。