本实用新型能够有效避免机具升降时，有 效避免了机具升降时变速箱动力传动轴与横梁的干涉。

The utility model can effectively avoid the interference between the power transmission shaft of the gear-box and the cross beam during the process of rising and descending of the machine tool.

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每一组收缩都会对环绕在传动轴上的项圈产生压力，于是，这些搏动的肌肉会一齐连续地挤压传动轴，形成转动力，从而产生旋转。

As they do so, each pair applies pressure to a soft ring around the driveshaft. The pulsating muscles collectively and continuously pinch the shaft and apply a rotational force, causing it to turn.

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也就是说，驱动力是从传动轴末端的传动齿轮输送到差速器的。

The driving power enters the differential through the drive pinion on the end of the propeller shaft.

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