Taking calcium ion as a case, analysis on non - accuracy of cation ion in the water by ion chromatography is done.
以钙离子为例，通过用离子色谱法测定水中阳离子测量不确定度分量的分析。
By giving examples, including the determination of acetic acid content in aqua ammonia, the use is described of the cation exchange resin in analysis in nitrogenous fertilizer plants.
通过氨水中乙酸含量的测定等实例，介绍了阳离子交换树脂在氮肥厂分析中的应用。
The indi cation of forecast analysis for China's fiscal expenditures, the combination of the two kinds of models can raise the forecast precision.
通过对我国财政收入的预报分析表明，这两种统计模型的结合使用，较大程度地提高了预报精。
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