Elasticity of substitution — a measure of the degree to which two factor inputs complement or substitute for one another in production.
弹性代换——产品中的两个因素投入产品中相互补充或是代替的衡量度数。
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At the same time, discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.
Method of concatenated substitution is an important method to make factor analysis. Its standardization form is the mathematical mode of the method of concatenated substitution.