“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	high purity niobium high purity precious metal materials high purity reagent high purity signal generator high purity tantalum high purity tungsten high purity zinc reference electrode high-Q mode high quality aggregate High-quality development of the cultural industry high rate direct sequence spread spectrum high rate direct sequence spread spectrum, HR-DSSS high rate discharge ability high redshift High-redshift galaxies high-redshift galaxy high-reflecting coating high-reflecting film high-reflection coating high refractive index polymer high-resistance alloy high-resistivity alloy high resolution high resolution airborne magnetic survey high resolution continuum source atomic absorption spectrometer

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。