By analyzing and constructing the dynamical mechanism of the land-lost peasants' citizenization, we have an explanation of the endogenous impetus, external impetus and system vector.
对失地农民市民化动力机制的分析与构建，指出了失地农民市民化的内生动力和外驱动力，并对这一动力系统的载体进行了阐述。
The impetus to communication and obstruction against communication is a essential part of the communicative mechanism, the impetus is divided into internal impetus and external one.
此外，技术知识传播的动力和阻力也是传播机制分析的重要部分，其中的动力分为内部动力和外部动力。
The endogenous impetus of clustering for Shaoxing textile industry lies in external economics of scale.
绍兴市纺织产业集聚的内在动因在于外部规模经济效应。
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