通过对青海主要土壤类型剖面的有机质、机械组成、阳离子交换量三者之间的关系分析。
The relationship was analysised between organic matter, soil granular composition and cation exchange capacity(CEC) in Qinghai major soil types.
引用概率密度的概念，即转化率分布密度函数对连续离子交换过程进行分析。
The continuous ion exchange process was analysed through the concept of probability density and conversion distribution function.
本文建立了汽油发动机油在用油极性组分的分析方法，即硅胶-离子交换色谱法。
A silica gel-ion exchange chromatography has been developed for the analysis of polar components in the used gasoline engine oil.
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