“抚养比”的概念、定义、翻译、参考文献-科学参考

单词	抚养比
释义	抚养比 Encyclopedia 法学年龄释 dependency ratio抚养比人口中非劳动年龄人口数与劳动年龄人口数之比。又称抚养系数或负担系数。用百分比表示。
随便看	explosive galaxy explosive-handling vehicle explosive hardening explosive homicide cases explosive instability explosive lens apparatus explosive material explosive nucleosynthesis explosive oil production technique explosive phase explosive polymerization explosive residual stresses relieving explosive residue explosives explosives and propellants explosives charger explosive sensitivity explosive shower explosive source explosive synthesis explosive train explosive transfer assembly explosive variable explosive welding explosive working

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。