A sundog is another atmospheric optical phenomenon caused by the refraction of sunlight by tiny ice crystals in clouds.
幻日是阳光通过云层中微小冰晶的折射而造成的另一种大气光学现象。
Binary ice is a kind of muddy mixture of very tiny ice crystals and glycol solution, so it is called ice slurry as well.
二元冰是极细小的冰晶与乙二醇水溶液形成的泥浆状混合物，所以也称之为冰浆。
This fairly common sight occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. Each ice crystal ACTS like a miniature lens.
这种相当常见的气象景象之所以会出现，是因为覆盖广大天空的高层薄云中含有数以百万计的小冰晶，而每一个冰晶的作用就像是小型的棱镜。
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