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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The new mechanism has been tentatively verified by site pumping experiment at a typical ground fissure of Datong city, China.

上述地裂缝活动机理通过大同机车工厂现场抽水实验得到了初步证实。

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The drum type pumping unit with the new reverse mechanism has the advantages of impact structure, light weight and extended gear reducer life.

采用这种机构设计出的滚筒机具有结构紧凑、重量轻及减速器寿命长等优点。

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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