Evolving process of hub dynamo which used in bicycle is presented. The performance of magnetite viz. ferrimagnetism or NdFeB is analyzed. The prospect of marketing is viewed.
摘要介绍了自行车上使用
花鼓式发
演变过程，分析了所用
石，即铁氧体或钕铁硼
优劣，并进行了市场前景展望。
Evolving process of hub dynamo which used in bicycle is presented. The performance of magnetite viz. ferrimagnetism or NdFeB is analyzed. The prospect of marketing is viewed.
摘要介绍了自行车上使用花鼓式发演变过程，分析了所用石，即铁氧体或钕铁硼优劣，并进行了市场前景展望。
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