control unit

基本解释

The system consists of two air vehicles and a ground control unit.
該系統包含兩個飛行器和一個地麪控制單元。
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This subsystem normally resides in the printing system's control unit (a single locality).
這個子系統通常存在於打印系統的控制單元中（單個地區）。
The electricity thus generated is sufficient to send an OK signal to the central control unit.
如此，産生的電力足夠曏控制中心發送一個“沒問題”的信號。

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Because the payload is much less massive than the control unit, the centre of rotation is close to the control unit.
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