当你把任意电荷旋转起来，就能得到磁场。

Spin any electric charge and you get a magnetic field.

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你可以使用任意的旋转角度。

You can use any Angle of rotation.

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而且，它们可以旋转360度，这样，汽车可以朝任意方向行驶。

Also, the wheels can turn 360 degrees, so the car can move in any direction.

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调换任意两相接线即可改变电机旋转方向。

To be reversed any two wire can be changed motor direction.

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调换任意两相接线即可改变电机旋转方向。

To be reversed any two wire can be changed motor direction.

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