“mean age”的概念、定义、翻译、参考文献-科学参考

单词	mean age
释义	mean age Encyclopedia 法学年龄释 mean age平均年龄反映一定时间总人口年龄水平的指标。
随便看	planar force system planar graph planar graph algorithm planar Hall effect planarity planarization planarization process planar junction planar lens planar limit planar linear magnetic grid ruler planar map planar motor planar near-field planar near-ring planar net planar parallel motion planar pinning center planar point planar polygon planar problem planar Schottky diode planar set planar square complex planar structural analysis of pharmaceuticals

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。