demographic transition

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。

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。

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

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。

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”。

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

China's Demographic Transition and the Evolution of Population Policy

中国人口转变与人口政策的演变

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.