钕铁硼和铝镍钴磁铁怎样鉴别？
铝镍钴磁铁提供了增强的温度稳定性，而钐钴磁铁提供高能量带好，性能稳定。
Alnico magnets provide enhanced temperature stability while Samarium Cobalt magnets offer high energy with good, stable performance.
与正常陶瓷或铝镍钴磁铁，人们会去更大的长度，以建立一个有效的交流而产生这种力量在如此低的转速。
With normal ceramic or AlNiCo magnets, one would have to go to much greater lengths to build a alternator which efficiently produces this kind power at such low RPM.
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