Therefore, the study of drilling pump is very necessary.

因此，对钻井泵的研究是十分有必要的。

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The drilling pump is one important part of drilling equipment.

钻探用泵是钻探设备的重要组成部分之一。

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Now, the drilling pump widespread in use is the tri-cylinder pump.

针对以上要求，目前广泛使用的是三缸单作用往复泵（简称三缸泵）。

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One danger is that, as the oil slowly oozes out, it might leak into the ground water before a drilling rig can pump it out.

NPR: Industry Seeks to Extract Oil from Rocky Mountain Shale

On May 26th BP, the company responsible for the well that Deepwater Horizon had drilled, started to pump heavy drilling mud into the well's blowout preventer, a set of valves on the sea floor.

ECONOMIST: Nerves are fraying a month after the Gulf of Mexico oil spill

The key is the drilling and management of several dozen boreholes around London to pump out about 70m litres (15m gallons) of water a day, equivalent to about 3% of Londoners' daily consumption.

ECONOMIST: London��s sinking