为了在运行的时候平稳起见，增设了弹簧缓冲装置，当起动或停止的时候，均能保持稳定，在车的牵引装置上装有缓冲弹簧。

In order to smooth at run time, add the spring buffer device, when starting or stopping, can remain stable, in the car's traction device is equipped with buffer spring.

youdao

为了在运行的时候平稳起见，增设了弹簧缓冲装置，当起动或停止的时候，均能保持稳定，在车的牵引装置上装有缓冲弹簧。

In order to smooth at run time, add the spring buffer device, when starting or stopping, can remain stable, in the car's traction device is equipped with buffer spring.

youdao