The water pump is a simple centrifugal pump driven by a belt connected to the crankshaft of the engine. the pump circulates fluid whenever the engine is running.

水泵就是一个简单的离心泵，用皮带连接发动机上的曲轴。发动机无论何时运转水泵都能循环起来。

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Doesn't matter is it the engine oil leak, power steering fluid or transmission fluid, if you discover any, get it fixed before it caused something serious.

无论是发动机漏油、动力转向漏油或者是变速器漏油，一经发现，立刻修理，避免进一步恶化。

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No damage and fluid fluid leakage from engine pylon and cowling doors.

发动机吊架和整流罩无液压油渗漏和损伤。

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Power steering fluid on a hot engine could also cause a fire, GM reported.

FORBES: GM SUV Owners Await Recall Fix

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