“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	hydrogen emission region hydrogen energy hydrogen energy pipeline transportation hydrogen engine hydrogeneration hydrogenerator hydro-generator parts hydrogen evolution reaction hydrogen explosion hydrogen filling station hydrogen flame ionization detector hydrogen flocculus hydrogen fluoride hydrogen fuel hydrogenfuel cell hydrogen gas explosion limits hydrogen gas flammability limits hydrogen gas recovery technology hydrogen generation by hydrolysis hydrogen geocorona hydrogen halo hydrogen in coal hydrogen index hydrogen in metals hydrogen internal combustion engine

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。