“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	concavity cut concavity cutting-plane method concavity downward concavo-concave concavo-convex concavo-convex lens concavo-plane conceal concealed beam concealed motion concealing a candidate's name concealment method Concentraion on Doubtful Matters While Persuing the Laws concentrate concentrated concentrated area with special difficulties concentrated bait concentrated charging concentrated constant circuit concentrated couple concentrated force concentrated force difffusion structure concentrated frequency area concentrated impedance concentrated juice

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。