“老龄化水平”的概念、定义、翻译、参考文献-科学参考

单词	老龄化水平
释义	老龄化水平 Encyclopedia 工学公共服务设施规划释 population aging level老龄化水平即人口老龄化水平，用来衡量社会人口结构的重要参数。用地区老年人口数与总人口数之比值来表示。
随便看	one-unit maintainable system one-valued one-valued branch one-valued function one-valued mapping one-variable calculus One Village One Product one vote veto system one-way analysis of variance one-way channel one-way classification one-way classification model one-way Doppler one way function one-way function one-way function conjecture one-way hash function one-way infinite Turing machine one-way layout one-way light time one-way membrane one-way nesting one way quantum computation one-way quantum computation one-way quantum finite automata

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。