“抚养系数”的概念、定义、翻译、参考文献-科学参考

单词	抚养系数
释义	抚养系数 Encyclopedia 医学老年流行病学释 dependency coefficient抚养系数人口中非劳动年龄人口数与劳动年龄人口数之比。又称抚养比、年龄抚养比、抚养率或负担系数。
随便看	alternating satellite alternating sequence alternating series alternating series test alternating set of points alternating share alternating sign matrix alternating sign matrix conjecture alternating-signs rule alternating-signs test alternating space complexity alternating stress alternating sum alternating tensor alternating tensor density alternating tensor field alternating time complexity alternating tree alternating trilinear decomposition alternating Turing machine alternating type alternating zeta-function alternation alternation current alternation current Josephson effect

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。