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筷子为什么能在水里立起来

更新时间: 2020-11-04 00:00:00     

筷子能在水里立起来是因为筷子蘸水以后液体表面会有一些张力,那几根筷子已经变成了一个整体,慢慢的就找重心和立足点了,与一根筷子相比和碗底的接触面积就变大了,所有站住更容易。

关键词: 筷子 为什么 起来

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