Electric motors are electrical devices that convert electrical energy into mechanical energy. They are used in general industrial applications.图片
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Electric motors are electrical devices that convert electrical energy into mechanical energy. They are used in general industrial applications.
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  • 作者:Wisarut
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关键词

拖拉机工作机器电源重型气体机械工业工程行业发动机设备管道施工技术金属建筑卡车工厂