Duties: To certify, survey & inspect operators and airman engaged in civil aviation activities in the field of flight operation and civil aviation medicine; to handle the relevant illegal acts.是什么意思_Duties: To certify, survey & inspect operators and airman engaged in civil aviation activities in the field of flight operation and civil aviation medicine; to handle the relevant illegal acts.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句