Light and electric signal brakes by PLC control power and magnetic clutch to keep pace with the main engine.

光电信号通过PLC控制电磁离合制动，实现与主机同步。

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This paper also introduces sprag overrunning clutch to be applied in transmission system of rotor aero-craft.

还对斜撑超越离合器在直升机传动系统上的应用作了介绍。

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There was an anguished cry and a clutch to his right hamstring, Garcia departing the pitch on a stretcher and the stadium on crutches.

本场比赛中，利物浦队队员加西亚在比赛开始仅100秒的时候，就在一次触球中痛苦的大叫一声倒地，并随后被担架抬下场。

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Conversely, it has provided the ripest opportunity for the GOP clutch to launch its assault.

FORBES: How the Left Got Lazy

They rely on a fluid, rather than a mechanical clutch, to transmit the engine's torque to the wheels, and this is inefficient.

ECONOMIST: Fuel economy

But in the face of Mr Sistani's stubbornness he has agreed to a clutch of adjustments, so far unspecified, to his caucus method.

ECONOMIST: Elections or caucuses?