“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。
随便看	canonical assemblage canonical atlas canonical average canonical base canonical basis canonical Big Bang canonical bilinear mapping canonical box matrix canonical brick canonical bundle canonical bundle formula canonical change canonical chart canonical class canonical cohomology class canonical commutation relation canonical commutation relations canonical-commutation-relations algebra canonical commutator canonical conjugate canonical conjugate variable canonical conjugate variables of electromagnetic field canonical connection canonical constants canonical coordinate

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。