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- The paper introduces the design performance of 7523 type, 540A type truck brake pulley and retaining pawl, and puts forward improving way for some constructive defects in a borer. 介绍了7523型、540A汽车制动鼓蹄镗削机床的设计性能，提出了机床部分结构缺陷的改进办法。
- Keywords Brake pulley and retaining pawl;Borer;Improvement; 制动鼓蹄;镗削机床;改进;
- He pushed hard on the brake pedal to avoid a collision. 他使劲踩下煞车踏板以避免撞车。
- He brake his car just in time to avoid an accident. 他及时煞车，避免了一次事故。
- Riding the brake is a bad habit for a driver. 司机把脚放在刹车踏板上是一个坏习惯。
- The brake failed and the car ran into a lamp-post. 刹车失灵了，汽车撞在灯柱上了。
- Our flag is raised to the top of a pole by a rope and two pulley. 我们的旗帜被用一根绳子和两个滑轮升到了竿顶。
- The brake doesn't grip properly. 刹车不灵了。
- But there are two pedals. Which one is the brake? 但是那儿有两个踏板。哪一个是刹车呢？
- brake pulley 制动轮
- The lifting device is a system of rope and pulley. 这种起重装置是由缆索和滑轮组成的。
- A lot of the cost of maintenance go into renew brake. 很多的维修费用都花在了更换煞车方面。
- They reeved the rope through the pulley. 他们把绳索穿过滑轮。
- There's too much travel on the brake, it needs tightening. 制动器太松了，需要调紧。
- The lower part of a pulley block. 滑车组较低的一部分
- The brake fail and the car come to a stop against a wall. 刹车装置失灵了，车撞到墙上才停下来。
- The car in front of me stopped suddenly and I had to brake. 我前面那辆小汽车突然停住，我只好刹车。
- The brake (pedal) is between the clutch and the accelerator. 制动器(踏板)在离合器和加速器之间。
- The belt started wrapping up on the tractor pulley. 皮带开始绕在拖拉机的皮带轮上。
- Permitting rotation, as a pulley or pivot. 允许旋转的，如滑车或枢轴
