“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	resistance of overland flow resistance of plants resistance of the fuel bed resistance of thermomass movement resistance of the Shanghai press against the "Publishing Appendices" proposal resistance polarization resistance projection welding resistance quantum resistance-related genes resistance relaxation resistance rock mass resistance sampling resistance screening resistance seam welding resistance spot welding resistance star resistance strain gage technique resistance strain gauge resistance strain gauge measuring equipment resistance strain sensor resistance theory resistance thermometer resistance to blood flow resistance to chemical attack of concrete resistance transducer

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