水位达到一定高度时，水将推动一个控制杆，从而显示时间。
When the water reaches a certain level, it moves a lever and this shows the hours.
水推动着水车来回转。
在像福岛核电厂的沸水反应堆中，冷却反应堆芯的水还拿来煮沸，以此推动涡轮机旋转从而产生电量。
In a boiling water reactor like those at Fukushima, the same water that cools the reactor core also boils and drives the turbine to generate power.
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