主令控制器是起重电气的一种。

Master controller is a kind of electric lifting.

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应该打开并检查主令控制器。

The master controller should be opened up and examined.

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主令控制器由外壳和防爆元件等组合而成。

Master controller is constructed of shell and explosion-proof components.

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我们改造的主令控制器。

We transformed the command controller.

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当整条机组在升速或降速时，为了使所有传动辊速度同步，必须采用MRH主令速度控制器。

When the whole line is accelerating or decelerating, MRH speed controller must be used in order to keep the speed synchronized with all drive rolls.

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当整条机组在升速或降速时，为了使所有传动辊速度同步，必须采用MRH主令速度控制器。

When the whole line is accelerating or decelerating, MRH speed controller must be used in order to keep the speed synchronized with all drive rolls.

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