He has a bicycle with lights powered by a dynamo.
他自行车上的电机提供能源。
He has a bicycle with lights powered by a dynamo.
他自行车上的电机提供能源。
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的花鼓式电机的演变
程,分析了所用磁石,即铁氧体或钕铁硼的性能优劣,并进行了市场
望。
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人工审核,其表达内容亦不代表本软件的观点;若
现问题,欢迎向我们指正。