“成年型人口”的概念、定义、翻译、参考文献-科学参考

单词	成年型人口
释义	成年型人口 Encyclopedia 法学成年型人口释 adult population成年型人口 0～14岁人口数量占总人口数量30%～40%，65岁及以上人口数量高于总人口数量4%但低于总人口数量7%的人口年龄结构。
随便看	steam methane reforming steam pipeline of boiler steam pipe network steam point steam power steam reformer steam reforming catalyst steam reforming process steam separator of boiler steam soot blower steam system in iron and steel enterprises steam through and unite steam tube rotary cylinder dryer steam turbine steam turbine auxiliary system steam turbine body steam turbine by-pass system steam turbine carrier steam turbine control system steam turbine cover enclosure steam turbine cylinder steam turbine diaphragm steam turbine fault steam turbine flange steam turbine flow passage thermal calculation

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。