The faster you need to switch from one pole to the other, the less coercitive force the material must have.
当我们要求磁性介质能够快速地进行极性转化的时候，这种材料就必须相应地具备更低的矫顽力。
The faster you need to switch from one pole to the other, the less coercitive force the material must have.
当我们要求磁性介质能够快速地进行极性转化的时候，这种材料就必须相应地具备更低的矫顽力。
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