“人口自然变动”的概念、定义、翻译、参考文献-科学参考

单词	人口自然变动
释义	人口自然变动 Encyclopedia 法学人口自然变动释 population natural dynamics人口自然变动由人口出生和死亡引起的人口总量的增减和人口性别年龄构成变化的过程，是生物过程和社会过程的统一。
随便看	timing age timing analysis timing analyzer timing attack timing constraint timing control method timing device timing diagram timing effect of axial flow compressor timing equipment timing error timing gears timing generator timing group delay timing instrument timing jitter timing pulse timing pulse distributor timing reproduction timing schedule timing sequence navigation timing simulation timing system timing terminal Timiryazev crater

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。