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当天气非常寒冷的时候,液体会变成固体,或者说是结冰。温度降至“冰点”以下,水就会变成冰。下面的实验,可以让我们看到盐如何改变水的冰点。
When the weather is very cold, the liquid becomes solid, or frozen. When the temperature drops below freezing, the water turns ice. The following experiment allows us to see how salt changes the freezing point of water.