你可以随意变化速度。
在顺磁材料中，磁矩的方向在原子之间随意变化。
In a paramagnetic material the directions of the magnetic moments vary randomly from atom to atom.
由于取消了齿轮传动，因此其传动比可以随意变化，变速更加平顺，没有换挡的突跳感。
Because has cancelled the gear drive, therefore its velocity ratio may change at will, the speed change is smoother, has not shifted gears kicks the feeling.
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