“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	hard binary hard branch cutting hard bubble hard capsules hard carbon hard carbon anode hard-clipped auto-correlation hard-clipped auto-correlator hard condition resistant fiber hard control hardcopy hard corals hard core hardcover hard-cover binding line hardcover book hard crown-glass hard cutting hard decision hard dense loops hard direction hard direction for magnetization hard direction of magnetization hard disk hard disk drive

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。