“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	exploratory machinery exploratory movement exploratory procedure exploratory profile line exploratory region(block) exploratory research exploratory shaft sinking exploratory spatial data analysis exploratory survey exploratory trench exploratory tunnel exploratory tympanotomy exploratory well category Explore Butterfly Dream Three Times Explorer explorer Explorer 11 Explorer-1 satellite Explorer satellite exploring exploring and organizing the poem exploring coil Exploring Complexity exploring equipment Exploring the Limits of Preclassical Mechanics: A Study of Conceptual Development in Early Modern Science: Free Fall and Compound Motion in the Work of Descartes, Galileo, and Beeckman

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。