Internal dynamic mechanism con-sists of cluster effect mechanism and factor substitution mecha-nism,while external dynamic mechanism is composed of market-driven mechanism,government-oriented and stimulated mechanism and technology innovation mechanism.
其中,内在动力机制主要由聚集效应机制和要素替代机制两方面组成,外生动力主要包括市场驱动机制、政府导向与激励机制、技术创新机制等方面。
参考来源 - 城市土地集约利用动力机制研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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.
并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。
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.
连环替代法是进行因素分析的重要方法，其规范化形式就是连环替代法数学模型。
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