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- Dynamic Simulation of Retracting Mechanism of the Landing Gear of an Aircraft with Computer Simulation Techniques 基于仿真计算的某型飞机起落架收放机构的仿真研究
- The accused refused to retract (his statement). 那被告拒不撤消(其供述).
- You operate the mechanism by winding this handle. 操纵这台机器要转动这个把手。
- The watch has delicate mechanism. 这块表有精细的机械装置。
- Let's examine into the basic mechanism involved. 让我们把有关的基本结构搞搞清楚。
- The undercarriage on light aircraft does not always retract in flight. 轻型飞机飞行时起落架不一定缩回。
- A part of a mechanism that moves in this manner. 横移物以这种方式移动的一个机械零件
- There's no mechanism for changing the decision. 没有办法改变这一决定。
- An airplane engine is a complex mechanism. 飞机引擎是种复杂的机械装置。
- Whereas many taildraggers can afford to use non-retracting gear with minimal impact on performance, planes with nosewheels almost always require retraction mechanisms to reduce drag. 另一方面，固定式后三点起落架耐冲击性能较强。而前三点起落架，需要收放式以减小飞行时的阻力。
- Arc ignition: retracting and scraping. 引弧可采用“回抽”、“刮擦”起弧方式.
- A device or mechanism that grinds grain. 磨臼，磨粉机磨谷物的装置或机械
- A tripping or triggering device on a mechanism. 倾卸装置、钩杆机械装置上断开或启动的装置
- People with tact have less to retract. 智者悔少。
- To recant or retract something sworn. 食言取消或撤回所发的誓
- To retract(something spoken;unsay. 收回（所说的某些话）；撤回（前言）
- retracting mechanism 复位装置
- A similar device used to release or activate a mechanism. 起动装置，扳柄类似扳机的装置。用来使机械装置运作
- A cat can retract its claws,but a dog can't. 猫能收缩爪子，狗却不能。
- The soldier told us where the firing mechanism of a rifle is. 那个士兵告诉我们哪儿是步枪的击发装置。
