弹簧的一端和转向节相连而另一端可以在一个方向上自由移动。

One end of the springs is attached to the knuckle while the other end is free to move only in one direction.

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自锁型气弹簧是一种可以在行程任一位置锁定的气弹簧。 在自锁型气弹簧的活塞杆端部有一个针阀打开这个针阀，则自锁型气弹簧可以象自由型气弹簧那样运行；

The piston rod self-locking type gas spring end there is a needle valve open the needle valve is self-locking type gas spring can run as the free type gas spring;

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