ion_migration_ratio_有道手机词典

1.In this paper, four different ratio groups of concrete specimens are tested, using NEL method which is based on ion diffusion and electrical migration.
配制四组不同混凝土配合比的试件，采用基于离子扩散和电迁移提出的NEL法对饱盐混凝土试件的氯离子扩散系数进行测定。
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