“老年人口系数”的概念、定义、翻译、参考文献-科学参考

单词	老年人口系数
释义	老年人口系数 Encyclopedia 医学老年流行病学释 coefficient of aged population老年人口系数老年人口在某个国家或某个地区的总人口构成中所占的比例。又称老年人口比例。
随便看	interactive decision making interactive decision-making interactive desk interactive device interactive exhibition interactive film interactive form interactive graphics system Interactive Infographic interactive information retrieval Interactive Information Retrieval in Digital Environments interactive information service Interactive information sharing mode interactive input device interactive language interactive learning interactive learning environment interactive lighting interactive machine translation interactive method Interactive Multimedia Association interactive multimedia system interactive narration interactive policing strategy interactive polynomial time equals polynomial space problem

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。