On the basis of operational principle of bladed fluid machines, a wicket-gate-free axial-flow water-power recoverer was researched and developed.
摘要基于叶片式流体机械工研究开发出一种无活动导叶卧式轴流式水能回装置。
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电机过程，分析了所用磁石，即铁氧体或钕铁硼性能优劣，并进行了市场前景展望。
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Your resume, especially under work summary but also in other areas as well, we often use the past tense.
历中，特别是在工摘要或其它部分，常用过去式。
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划词翻译
详细解释
工
研究开发出一种无活动导叶卧式轴流式水能回
装置。
过程，分析了所用磁石，即铁氧体或钕铁硼
历中，特别是在工
，
常用过去
