A geothermal heat pump works like a regular heat pump, only it pulls heat out of the ground instead of the air.

地热泵的工作方式与普通的热力泵相同，区别只是地热泵是从地下吸热而不是从空中。

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To illustrate how the heart circulates blood through the body, the teacher described how a pump works.

为了说明心脏如何使血液在全身循环流动，老师描述了水泵的工作原理。

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Check if pump works normally, repair or replace it.

检查油泵的工作是否正常，修理或换新的油泵。

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Self-contained vacuum, pump and filter system works without suction lines or other modifications to existing systems.

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It works by using a power source to pump 10 kV of juice to an electrode, which then polarizes a dielectric plate, causing it to attract your body hair.

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