自然界10大冰雪奇迹:冰冻瀑布和神秘冰矛(9)
雪花
雪花晶体形成于微小过度冰冷云雾水滴结冰过程中,这些云雾水滴在零下18摄氏度以下仍能保持液态,由于冷冻,云雾水滴中的许多分子通过改变形状聚集在一起,形成类似的冰框架,然后水滴在其周围进行冷冻结晶。
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