“second demographic transition”的概念、定义、翻译、参考文献-科学参考

单词	second demographic transition
释义	second demographic transition Encyclopedia 法学人口转变释 second demographic transition第二次人口转变一些发达或较发达国家出现的生育率极低且长时间在低位徘徊、死亡率因人口老龄化缓慢回升、人口自然增长速度极其缓慢甚至负增长、人口净迁移率由负变正的人口变化过程。
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