Water storage 5 assures an amount of water necessary for plants to grow.

贮水部(5)的贮水量可确保植物生长发育所必需的水量。

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A floating object displaces an amount of water whose weight equals that of the object.

浮体排开一定量的水，其重量等于浮体的重量。浮体所排开水的重量等于其自身的重量。

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Obviously, there exists an amount of water that would be more expensive than a given amount of diamonds.

显然存在这样一种情况：有数量足够大的水，它比给定数量的钻石更昂贵。

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They require an exact amount of water,warmth,soil and protection.

VOA: special.2010.02.17

If that seems like an astronomically large amount of water for such a small change, it's because it is.

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Glaciers, ice fields, and snowpack store an immense amount of fresh water and gradually release it to meet year-round needs for irrigation, drinking, sanitation, industrial processing, clean energy, and food production.

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That said, over the past decade, there has been an enormous amount of evidence that water once flowed freely on the ancient surface of Mars.

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