downlock actuator 下锁作动器

downlock spring 下锁弹簧

downlock switch 下锁开关

gear downlock pin 起落架下锁扦销

DNLK Downlock 下锁 ; 放下锁

landing gear downlock pin 起落架下位锁保险销

landing gear downlock override switch 起落架下位锁超控电门

landing gear downlock spring 起落架下位锁锁定弹簧

landing gear downlock annunciator 起落架下位锁示号器