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为什么汤沸腾了会溢出锅
更新时间： 2020-09-23 00:00:00  

汤沸腾了会溢出锅的原因：

汤里有油脂或淀粉等粘性物，这些粘性物能使水泡薄膜拉得更紧而不易破裂，汤沸腾时形成大量水蒸气，这些水蒸气在汤里“吹”出大量的气泡将汤水挤出锅，当汤沸腾将锅盖盖住时，锅内气压增大，气泡内外气压差更小，气泡变得更大时才会破，所以锅盖盖住时将形成更多更大的气泡将汤水挤出。

关键词： 为什么 沸腾 溢出

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