His policy covered heart transplants, but not the cost of the mechanical pump.

他的投保范围包括了心脏移植，但是没有涵盖机械泵。

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The device is equipped with a cryogenic pump, an oil diffusion pump and a mechanical pump.

该机抽气系统由低温泵、扩散泵和机械泵组成。

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A check valve (3) can prevent the natural chemical absorption water head of the water head when the manual pump or the mechanical pump stops to work.

止回阀(3)起当手压或机械泵停止工作时能阻止水位差的自然吸药。

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The simple mechanical pump draws water from a shallow well or nearby stream or river for use in irrigation.

VOA: standard.2009.12.18

Seventy-eight-year-old Richard Stowe has a mechanical pump inside his chest that keeps blood flowing throughout his body.

VOA: standard.2010.01.27

In one memorable week last year, the hot water heater, the pool pump and the mechanical arm on the gate in their driveway all went on the fritz.

FORBES: Magazine Article