There the air absorbs more moisture, which then condenses on a metal wall cooled by seawater, and thus distilled water for irrigating the plants collects.

在那里，空气吸收了更多的水分，然后将水分凝结在由海水冷却的金属壁上，从而收集用于灌溉植物的蒸馏水。

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They allow a certain amount of salt to enter their cells, bringing the salt content of the water within the plant, to a slightly higher concentration than that of the surrounding seawater.

它们允许一定量的盐分进入它们的细胞，将水中的盐分带进植物体内，并把其体内的盐含量提高到比周围海水稍高的浓度。

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Seawater is forced through a semipermeable membrane that separates salt from water.

用半透膜将海水里面的水分和盐分分开。

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Critics of desalination agree, adding that such high costs are preventing those U.S. cities that are actually transforming seawater into potable water from fully utilizing their existing facilities.

FORBES: San Diego Fishing for Fresh Drinking Water in Pacific Ocean

The salt of the seawater draws the fresh water across the membrane, leading to a build-up of pressure which forces water through the turbine, generating electricity.

FORBES: Getting Power From Salty Water

We also spotlighted the Networking Nature exhibit at the Venice Biennale -- a small ecosystem that lives off of seawater and produces fresh drinking water.

ENGADGET: Inhabitat's Week in Green: solar panel printer, gold producing bacteria and a life-size of horse made of computer keys