Most of the general power machine by means of coupling machine connected with work.

一般动力机大都借助于联轴器与工作机相联接。

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Unfortunately this makes coupling a signal to the power network difficult.

不幸地这使结合信号对力量网络困难。

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Unfortunately this makes coupling a signal to the power network difficult.

不幸地这使结合信号对力量网络困难。

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