“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	continuous pre-press continuous press continuous probability distribution continuous process Continuous production continuous production line with pickling,tandem cold mill and annealing continuous quantity continuous query continuous radiation continuous random network continuous random network, CRN continuous random variable continuous reactor continuous renal replacement therapy continuous representation continuous reservoir continuous review(r,Q)policy continuous roller press continuous rolling continuous ruin problem continuous Runge-Kutta formula continuous sampling inspection continuous sampling plan continuous sand filtration technology for wastewater treatment continuous scale

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。