aviation equipment accidents
maintenance of aviation equipment
Equipment Development
设备研制
装备开发
设备开发
仪器研制
装备研制
装置开发
装备发展
film development equipment
Modify imported old equipment by domestic equipment
Public development andprivate development
retrogressive development regressive development
(1919) The Paris Aviation Covenant
7050 Aviation Aluminum-Alloy
active aviation election jamming equipment
AD [= aviation machinist’s
Aircrew members of civil aviation
Airworthiness Approval Tag of Federal Aviation Adm
Army rating method of aviation fuels
aviation
航空
航
民航
飞行
民
飞
飞机
航煤
飞控
光电集成电路
航空业
航空学
航空汽油
飞航无线电
航空兵
航空安全
航空医学