“少子化”的概念、定义、翻译、参考文献-科学参考

单词	少子化
释义	少子化 Encyclopedia 理学人口统计学释 babybust少子化一个社会中随着人口总和生育率下降，少年儿童（0-14岁）占总人口比重降低的现象。一般将一个国家的总和生育率长时间低于维持人口长期稳定发展的更替水平（2.1），界定为少子化。
随便看	volt ampere characteristics volt-ampere characteristics Volta River volt box Volter Adalbert Kilpi Volterra Volterra algebra Volterra crater Volterra equation Volterra functional series Volterra integral equation Volterra integral equation of the first kind Volterra integral equation of the second kind Volterra integral equation of the third kind Volterra kernel Volterra method Volterra operator Volterra process Volterra's equations Volterra series Volterra-Stieltjes integral equation Volterra type voltinism of silkworm voltmeter voltmeter-ammeter method

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。