“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	potential path length potential period potential perturbation potential pH diagram potential-pH diagram potential-pH diagrams potential presupposition potential public potential readers potential realizability potential reduction algorithm potential reduction method potential ridge potential risk potential risk of disease potential safety hazard potential scattering potential soil erosion risks potential source potential space potential step method potential supply potential surface potential system potential temperature

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。