雪花为什么是正六边形的结晶体我从一本书上看到的,把答案忘了,有谁知道.
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![雪花为什么是正六边形的结晶体我从一本书上看到的,把答案忘了,有谁知道.](/uploads/image/z/4922913-57-3.jpg?t=%E9%9B%AA%E8%8A%B1%E4%B8%BA%E4%BB%80%E4%B9%88%E6%98%AF%E6%AD%A3%E5%85%AD%E8%BE%B9%E5%BD%A2%E7%9A%84%E7%BB%93%E6%99%B6%E4%BD%93%E6%88%91%E4%BB%8E%E4%B8%80%E6%9C%AC%E4%B9%A6%E4%B8%8A%E7%9C%8B%E5%88%B0%E7%9A%84%2C%E6%8A%8A%E7%AD%94%E6%A1%88%E5%BF%98%E4%BA%86%2C%E6%9C%89%E8%B0%81%E7%9F%A5%E9%81%93.)
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