一些采取蒸馏海水的方法，通过将海水加热，蒸发出部分海水，之后将其浓缩，而这一方法需要电力。
Some distil seawater by heating it up to evaporate part of it. They then condense the vapour-a process that requires electricity.
该项技术被称为“干燥-蒸发冷却”技术，目前还在研发中。 该项技术耗能较低，部分原因是因为热水可以从太阳能板加热获得。
NREL’s technology, known as “desiccant-evaporative cooling”, is still being developed, but it requires little power, not least because the hot water can be obtained from solar panels.
假设部分与装满液体的容器中加热，液体扩大，或者说变得越来越密集，其中有一些蒸发。
Suppose a container partially filled with a liquid is heated, the liquid expands, or in other words becomes less dense; some of it evaporates.
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