“老年抚养比”的概念、定义、翻译、参考文献-科学参考

单词	老年抚养比
释义	老年抚养比 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	geometric boundary condition geometric braid group of order n geometric braid group of order n of space X geometric Brownian motion geometric burning rule geometric calculus geometric calibration geometric cell complex geometric centroid geometric chain complex geometric characteristic geometric characterization geometric class geometric closure system geometric code geometric complex geometric computing in 3D printing geometric computing on mesh surfaces geometric concentration　ratio geometric configuration geometric congruence geometric constraint geometric constraints geometric construction geometric construction analysis of system

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。