求翻译：止退器是用来防止进入停止位的载货小车由于惯性而产生的回弹的设备。通常布置在停止器后面和容易产生载货小车反向运动的地方。止退器由一组止退臂、支座及心轴所组成。止退臂沿小车运行方向有一斜角，以利于小车的正向运行。其结构如图所示.：是什么意思？

The only retreat is a device used to prevent laden car into the stop bit of rebound due to inertia. Usually arranged in the stopper back and prone to the reverse movement of the cargo car. The only retreat by only one group retreat arm, bearing and spindle. The only retreat arm has a bevel along the

Thrust is used to prevent access to stop loading the car because of the inertia of the device. Usually they are in the stop behind a laden trolley and easy reverse movement. thrust is a group for support and arm, and drift. The trolley runs along the arm which is angled to the benefit of the car to

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