氮霜，鳞纹理板，孔，是对升华和沉积模式的见证，由于稀薄的大气通过循环的扩张和崩溃。

Scaly textures in a veneer of nitrogen frost bore witness to patterns of sublimation and deposition, as the thin atmosphere breathed through cycles of expansion and collapse.

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通过对二值图像的分析，可以得到霜层的高度、固含率、冰晶体沉积量以及冰晶体在不同高度的分布等参数。

Several parameters, such as frost height, solid holdup, quantity of ice crystal and distribution of ice crystal at different level and so on can be gotten by analyzing this binary image.

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