一个动力源可以传出若干份角动力。由于构件不复杂，生产制造容易。

One power source can transfer several portions of angular power, and its structure is simple, and its production is easy.

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使用管道传送，不受动力传送路线的限制。通过对传送液体的控制及对构件宽度的改变，实现对传送角动力的控制及角速度的改变。

By controlling transferred liquid and changing width of member is can implement control of transferring angular power and change of angular velocity.

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这一方向的转变会将角动力(angular momentum)传递到域壁(the domain wall)上，推动域沿着电流的方向移动。

That flip transfers angular momentum to the domain wall, pushing it along in the direction of the current.

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