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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