“年龄结构”概念、定义、翻译-科学时代

单词	年龄结构
释义	生物学词汇手册 age structure 年龄结构
随便看	mixer mixer mixer mixer mixer mixer mixer mixer diode mixer-extruder mixer filter mixer granulator mixer insertion loss mixer installation mixer ladle mixer metal mixer reactor mixer-settler mixer settler mixi Mixia mixing mixing mixing mixing mixing box

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

age structure