A large quantity of water is stored in the reservoir.

水库存了大量的水。

《新英汉大辞典》

Control factor is enter quantity of water body in sunshine, and water body flow is smooth.

然而控制因子在阳光进入水体的量，和水体的是否流动顺畅。

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It would also take a huge quantity of water and phosphorus fertilizers, resources we are straining to their limits.

这还将需要耗费数量庞大的淡水和磷肥，它们都是亟待限制其使用规模的资源。

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So Coca-Cola and Poland Spring could just agree to produce half the quantity of water each.

假如可口可乐和波兰泉达成默契了,同意各产垄断产量的一半

耶鲁公开课 - 博弈论课程节选

But the hose ban aims to reduce the quantity of water consumed while maintaining a cap on the price.

ECONOMIST: Banning hosepipe use is a poor solution to a water shortage

The fear was that when this quantity of water hit the bottom, it would detach the ice from the bed on which it rested and lubricate its passage to the sea.

ECONOMIST: A meltdown tinged with acid

The sheer quantity of water gushing under bridges meant the otters could not swim against the rapid current, so they tried to cross the road instead and often got hit by cars.

BBC: New threats to UK otters' survival