“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	European Tour European Union European Union Agency for Law Enforcement Training European Union Agency for the Operational Management of Large-Scale IT Systems in the Area of Freedom, Security and Justice European Union General Committee for Agricultural Cooperation European Universities' Charter on Lifelong Learning European valuation standards European Vegetation Archive European vegetation classification system european verbena herb European Virtual Observatory European VLBI Network European Weed Research Society European X-ray Observatory Satellite European Year of Lifelong Learning Europe a Prophecy Europe forestry Europe Pipeline Research Group europium europium-activated Eurostat Eurovision EURO-VO eurybathic marine organisms eurychoric species

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。