这辆重型运输汽车是由两台电动机驱动的。

This heavy freighter is driven by two electric motors.

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这些机器都是由电动机驱动的。

The machines are driven by electric motors.

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这台缝纫机是靠电动机驱动的。

This sewing machine is driven by an electric motor.

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这割草机是由一台小型电动机驱动的。

This lawn mower is driven by a small electric motor.

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步进电动机系统是由步进电动机及其驱动器构成的。

The stepping motor can not be separated from its drive.

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步进电动机系统是由步进电动机及其驱动器构成的。

The stepping motor can not be separated from its drive.

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