片语
civil aviation aircraft民航飞机
civil transportation aircraft大型飞机
Maintenance for civil aircraft民用航空器维修
civil aircraft incident民用航空器事故征候
Civil transport aircraft民航运输机队
civil aircraft manufacturing industry民航制造业
Non-civil certified aircraft无人驾驶飞行器
civil l aircraft民用飞机
civil aviation aircraft fault diagnosis民航飞机故障诊断