We suspected that the high pressure oil pump was out of order.

我们怀疑高压油泵有问题。

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The reducer unit is a reducer, a high pressure oil pump or a hydraulic motor.

减速机构为减速机、或高压油泵和液压马达。

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Oil pressure is provided by a high pressure oil pump that, generally is belt driven by the engine.

油压是由高压油泵提供的，发动机通过皮带驱动油泵。

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It is powered by an engine which drives a hydraulic pump to send oil under high pressure around its plumbing in order to animate its limbs.

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General scepticism about OPEC's ability to pump any more oil has also put upward pressure on the price.

ECONOMIST: Pumping all they can? | The

Too many wells release the natural pressure in the field, like fizz from a soda can, and it becomes too expensive to pump the oil out.

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