然后基于数学形态学方法提取出薄膜表面缺陷的密度；最后给出了薄膜表面缺陷粒径的分布模型。

Then, based on mathematical morphological, it extracts the density of defects and the model distribution of the defect size also.

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对冰箱用聚氨酯泡沫塑料的密度分布机理进行了探讨，为配方和工艺优化提供了有价值的参考，并通过对密度分布的研究来解决冰箱泡沫的其他性能缺陷。

The density distribution of PU foam for refrigerator was studied. Some property problems of the foam were overcome. It was valuable for optimization of formula and technology.

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而在缺陷密度比较大的碲镉汞材料中，砷的分布呈多段指数型分布，表现出更复杂的多机制扩散特性。

While in HgCdTe with high dislocation density, the arsenic distribution is complex, exhibiting multi component exponential distribution.

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