The engine is used for pumping water out of the mine.

这台发动机是用来从矿井中抽水的。

《牛津词典》

Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.

在许多国家，数以百万计的灌溉井现在从地下水源抽水的速度，超过了降雨所能再次填满的速度。

youdao

They're pumping water by riding on a bicycle.

他们用骑自行车的方式泵水。

youdao

We heard someone pumping water.

VOA: special.2009.11.08

looked at things like where should they locate waste water treatment facilities because of the impacts of climate change, what risks are likely to occur to their subway system because it's underground and already requires enormous pumping of water during certain large rainfall events."

VOA: standard.2010.06.14

Tepco had been pumping water to raise the level in the No. 2 reactor.

WSJ: Japan's Nuclear Crisis Escalates

But robbers are getting more sophisticated, sometimes pumping water back into the pipes to fool pressure sensors.

ECONOMIST: Oil theft in Mexico

Pumping water out of flooded tunnels would take anywhere from 14 hours to four days, MTA officials said.

WSJ: Salt Water Puts City's Subway System 'in Jeopardy'