英语词汇“automatic drop down oxygen mask”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	automatic drop down oxygen mask
释义	automatic drop down oxygen mask 医自动下落氧气面罩
随便看	running down of battery running-down of business running-downs running down time running drag Running dried my month running drill running driving system running dry running economy running effect running efficiency runningempty running empty run ning empty Runningen running end running energy running engine running english running English running enterprise running enterprise according to law running enterprises ethically running enviroment