demographic transition

• 人口过渡

demographic transition的用法和样例：

例句

1. 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。
2. 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。