“age structure of population”的概念、定义、翻译、参考文献-科学参考

单词	age structure of population
释义	age structure of population Encyclopedia 理学种群年龄结构释 age structure of population种群年龄结构种群中各年龄阶段的个体在种群中所占的比例。又称种群年龄分布、种群年龄组成。
随便看	spreading dynamics spreading function spreading in layers spreading loss spreading machine spreading propagation attenuation spreading resistance profile Spreading the Way and Elucidating the Teaching: A Collection of the Expositions of Truth spread law spread mooring system spread of a distribution spread of alien species spread of a matrix spread of a topological space spread page advertisement spread plate cultivation spread spectrum communication spread spectrum technique spread spectrum transmission sprechstimme SPRi Spriggan S-prime spring Spring and Autumn and Warring States artistic design

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。