随着浸泡时间的增加，皮革样品的透水气性首先增大，随后减小。

With the increase of soaking time, the water vapor permeability first increases, then decreases.

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粉碎是一个通过第二种试剂的作用使粒子大小减小的过程，加入的试剂随后很容易去除。

Pulverization by intervention is a process for reducing particle size by using a second agent that can then be readily removed.

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