“child aged ratio”的概念、定义、翻译、参考文献-科学参考

单词	child aged ratio
释义	child aged ratio Encyclopedia 法学年龄释 child aged ratio老少比总人口中老年人口数与少儿人口数之比。一般以百分数表示。
随便看	naturalism Naturalism in drama natural isomorphism natural isotope naturalistic driving study naturalistic ethics naturalistic fallacy naturalistic observation naturalistic photography naturalistic theatre naturalist sociology naturality naturalization of aquaculture organisms naturalization of invasive species naturalized plant naturalized species natural join natural killer cell natural killer cell stimulatory factor natural killer T cell，NKT cell natural landscape natural language natural language dialogue natural language generation natural language processing

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。