5、扩散层的厚度(thickness of diffusion layer) 厚度越大，溶出速度越慢。扩散层的厚度与 搅拌程度有关，搅拌速度快，扩散层薄，溶出 速度快。
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The thickness of the diffusion layer reckoned by computation of steady-state diffusion equation has been found in agreement with the results obtained through laboratory experiment.
本文从稳态扩散方程推导出产生浓差极化的扩散层厚度与实验数据相符。
The results indicate that sintering temperature plays a prime role in the development of the number of phase layers and affects the thickness of diffusion solution layer by the thermal time.
实验结果表明，烧结温度对相层数量起主要作用，并和保温时间一起影响扩散溶解层厚度。
First, Fabrication and optimization of MEA are studied in many aspects, for example hot press parameters, components of catalyst layer and diffusion layer, PEM thickness, etc.
首先，对MEA的制备及优化研究，主要从热压工艺参数、催化层组分优化、扩散层和质子交换膜的选择等方面考虑的。
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