“old dependency ratio”的概念、定义、翻译、参考文献-科学参考

单词	old dependency ratio
释义	old dependency ratio Encyclopedia 法学年龄释 old dependency ratio老年抚养比人口中老年人数与劳动年龄人数之比，以百分数表示。又称老年抚养系数。
随便看	Robin boundary condition Robin boundary value condition Robin constant Robin function Robin George Collingwood Robin Hood effect Robin Horton Robin Law robinose Robin problem Robins Robinson Robinson annulation Robinson annulations Robinson Crusoe Robinson cycloaddition reaction Robinson Jeffers Robinson Mannich reaction Robinson-Mannich reaction robinson praxelis Robinson projection Robinson test Robin theorem Robin Williams Robin-Zelikovsky's algorithm

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