The vacuum pump may have a pumping mechanism that exposes the gas stream to water and wherein the water vapour is condensed from the gas stream.

真空泵可以具有抽吸机构，抽吸机构将气体暴露在水中，并且其中水蒸汽从气体流中冷凝。

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Based on these, the mass loss rate, coherent length and pumping mechanism have been discussed and the results agree with the observations very well.

并讨论了质量流失、相干长度和抽运机制等问题，结论与观测符合。

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The most likely and obvious radiative connection between the infrared and the masers is through the mechanism of radiative pumping of the maser.

红外辐射及微波激射间最可能而又明显的辐射联系是通过微波激射的辐射抽运机制实现的。

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Equipped with a turntable mechanism at its bow, the floating production platform can swivel a full 360 degrees in treacherous winds while pumping more than 100, 000 barrels of oil a day.

FORBES: Going deep