In this case there is always a magnetic coupling between the rotor and the stator.
在这种情况下，始终存在一个磁耦合转子和定子。
In this case, the magnetic field is probably generated by swirling plasma.
假若这样，磁场可能是由旋动的等离子产生的。
The case (3) is a magnetic breakdown phenomenon.
情况(3)是一种磁击穿现象。
The speaker has a case, a magnetic circuit, a diaphragm, and a passage.
扬声器具有壳体、磁路、振动膜和通道。
The speaker has a case, a magnetic circuit, a diaphragm, and a passage.
扬声器具有壳体、磁路、振动膜和通道。
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