- retraction jack
- 动作: movement; motion; action
- 筒: a section of thick bamboo
- 襟翼收放动作筒: wing flap operating strut
- 旅客梯收放动作筒: stair-operating ram
- 起落架收放动作筒: landing-gear retraction jack; leg retraction jack; undercarriage retraction jack
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收放动作筒的英文
发音:
- retraction jack
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