Each large mature tree ACTS as a giant water pump, recycling millions of gallons of water back into the atmosphere via evaporation from its leaves or needles.

每个大成年树木就如同一个巨大的水泵，通过其叶或针的蒸发，将成百万加仑的水回放到大气中去。

youdao

The emergency cooling system pump and motor for a boiling-water reactor are roughly the size and height of a compact hatchback car standing on its back bumper.

沸水反应堆紧急制冷系统的水泵和电动机和紧凑的两厢车竖起来的大小差不多。

youdao

Export pump with check valve, it will immediately turn off to prevent reverse flow back high-pressure water pump.

水泵出口装有逆止阀时，它会立即关闭，防止高压水反向流回水泵。

youdao

So the city, in 1867, sank an immense cylinder, or crib, 2 miles from shore to pump fresh water back to the inhabitants.

FORBES: A most unromantic river

Then, it would pump out the water, float back to the top and relay its data back to the scientists via a satellite network.

BBC: Cyber-sailors to survey oceans

Hydro dams can be reversed and pump water uphill so that the next day, when gravity pulls the water back down, the turbines spin to make electricity.

FORBES: A123 Bites the Dust Because They Forgot Their ABCs