They are powered by an electric motor or an engine, connected through gears, belts, or a flexible elastomeric coupling to reduce vibration.

他们采用电动马达或引擎，通过连接的齿轮，皮带，橡胶或弹性耦合，以减少振动。

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Adding additives: polyolefin elastomeric, magnesium hydroxide, antioxidant 1010, coupling agent and stearic acid additives.

添加的助剂有：聚烯烃弹性体、氢氧化镁、抗氧剂1010、偶联剂、硬脂酸等助剂。

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