demographic transition

The demographic transition is thus, in part, a pure accident.

因此, 一定意义上来说, 人口结构的转换是一场纯粹的意外.

Exploration on Family Planning Policy in Post Demographic Transition Period in China

后人口转变时期我国计划生育政策取向初探

The change of population professional structure is one important variable of modern demographic transition.

人口职业结构的改变，是近代人口变迁的一个重要变量。

The situation is analogous to Stage I of the demographic transition theory.

这相当于人口过渡论的第一阶段。

The thesis makes use of demographic transition theory to describe population reproduction modernization, explains the causes of fertility rate declination and sets up the analyzing model, and then suggests that we should use "golden age structure" in population reproduction to promote economic development.

对生育率下降原因进行了综合描述并给出分析模型；提出要利用人口再生产类型现代化过程中的黄金年龄结构机遇实现经济起飞和提速；

The first demographic transition changed the face of the western world as thoroughly as did the industrial revolution.

第一次人口统计学的变革就像当年的工业革命一样改变了西方世界的面孔。

China's Demographic Transition and the Evolution of Population Policy

中国人口转变与人口政策的演变

Most explanations of the demographic transition are social.

对于人口结构转化的解释大都出自社会学角度.

Demographic Transition in Modernization Process: A Macro-scale View

现代化进程中的人口转变：一个广义视野的考察

In China family planning policies had "accelerated the process of demographic transition".

在中国，计划生育政策“加速了这种人口过渡过程”。

Many developing countries are in the early stages of the demographic transition.

许多发展中国家正处于人口结构转型的初期阶段。