No crew member of a civil aircraft shall perform a flight mission if his work capacity is impaired by the effect of alcoholic beverage, narcotic or other drugs.是什么意思_No crew member of a civil aircraft shall perform a flight mission if his work capacity is impaired by the effect of alcoholic beverage, narcotic or other drugs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句