“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	brown shrimp Brown's lunar theory Brown Sparrow in Wild Fields: A Ballad brown spot needle blight brown-striped mackerel scad Brownsville Ecological Industrial Park brown Swiss cattle brown tide Brown-Twiss interferometer Brown University Brown v.Board of Education of Topeka browser browser fingerprint browser plug in browser-server application development tools browser-server architecture browser-server computing Browser/Server Mode browsing Broyden method Broyden's method BRR BRST charge BRST charge in minimal model BRST cohomology

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。