当群体意见趋同、继而迅速叠加、而又缺乏有效引导时，“群体极化效应”便会产生；
When the group's opinion reaches an agreement quickly, but lack of effective conduct, Group polarization phenomenon will appear.
利用极化效应指数，构造了链烷烃的有效碳链长度。
The effective length of carbon chain of alkanes was built up by using the polarizability effective index.
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