Main: motorcycle engine parts.
主营：摩托车发动机配件。
Power comes from an old motorcycle engine twirling wood blades.
动力来自一台旧摩托车的引擎所带动的木头桨叶。
Design and develop the device of motorcycle engine valve phase measuring system.
摩托车发动机气门相位测量装置的设计开发。
Design and develop the device of motorcycle engine compression ratio measuring system.
摩托车发动机压缩比测量装置的设计开发。
Cylinder block is an important part in motorcycle engine. There exists defects by conventional treatment.
气缸体是摩托车发动机的一个重要部件，采用常规方法处理存在缺陷。
Cylinder block is an important part in motorcycle engine. There exists defects by conventional treatment.
气缸体是摩托车发动机的一个重要部件，采用常规方法处理存在缺陷。
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