“老龄化水平”的概念、定义、翻译、参考文献-科学参考

单词	老龄化水平
释义	老龄化水平 Encyclopedia 工学公共服务设施规划释 population aging level老龄化水平即人口老龄化水平，用来衡量社会人口结构的重要参数。用地区老年人口数与总人口数之比值来表示。
随便看	dryland agriculture dry landscape drylines dry matter basis dry matter partitioning dry merger dry method analysis dry method spinning machine dry motar by using tailings as major raw materials dry mounting dry needling therapy dryness dryness bi dryness invading lung dryness inward collapse dryness is treated by moistening dryness meter dryness of natural gas dryness pathogen dryness-relieving prescriptions dryobalanops camphor dryout and post-dryout heat transfer dryout heat flux dry peeling machine dry permanent magnetic drum separator

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。