Most substance contractwhen they freeze so that the density of a substance’s solid is higherthan the density of its liquid.

大多数物质遇冷收缩，所以他们的密度在固态时高于液态。

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Most substance contract when they freeze so that the densityof a substance’s solid is higher than the density of its liquid.

大多数物质遇冷收缩，所以他们的密度在固态时高于液态。

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They usually have to be stored under cold conditions or even freeze-dried to a solid form to achieve an acceptable shelf life.

通常情况下，蛋白质和多肽药物被贮存在低温条件，甚至十被冻干成为固体形态，以期获得理想的效期。

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The planet would then meet an icy, rather than a fiery end, since after a million years or so the oceans would freeze solid.

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But as soon as the droplets brush something solid such as a tree branch, they freeze instantly.

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His deep-freeze freezer had 3 inches of solid ice at the bottom because of a power outage two winters ago -- and that helped keep some chicken cold enough to be safe for cooking.

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