以下为句子列表：
英文: The engine gear's precision of BEST110 Motor-cycle has been improved by the methods of combining rough heat treatment, mechanical processing and last heat treatment together, which can help to solve the problem of louder strange noise and realize its nati
中文: 摘要对BEST110型摩托车发动机离合器齿轮通过毛坯热处理、机械加工、和最后的热处理等结合在一起来提高齿轮的精度，解决了发动机异响较大的问题并实现了国产化。
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英文: The structure of electricity heating-tube arid the reason of accident are discussed based on some problems raised in the air-cycle resistance furnace, and the effective measure and several aspects should be taking into account in designing are put fornard
中文: 摘要根据电加热管在空气循环低温电阻炉上应用中出现的一些问题，对电加热管的结构和事故原因进行了分析，通过分析提出了有效的改进措施，明确了电加热管在设计中应注意的事项。
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