“封闭人口”的概念、定义、翻译、参考文献-科学参考

单词	封闭人口
释义	封闭人口 Encyclopedia 法学人口学方法释 Closed Population封闭人口在一定地域范围内，既无迁入也无迁出的人口，人口规模的变化完全取决于出生和死亡因素的人口类型。
随便看	transition state species transition state theory transition state theory (TST) transition-state wave packet method transition surface transition system transition temperature transition time transition town movement transition width transition with prohibitions transition with taboo states transition zone transitive transitive action transitive binary relation transitive class transitive closure transitive design transitive digraph transitive embedding theorem transitive extension transitive functional dependency transitive graph transitive group

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。