“elderly population”的概念、定义、翻译、参考文献-科学参考

单词	elderly population
释义	elderly population Encyclopedia 法学老年型人口释 elderly population老年型人口 0～14岁人口数量占总人口数量30%以下，65岁及以上人口数量高于总人口数量7%的人口年龄结构。
随便看	Hamiltonian loop Hamiltonian mapping Hamiltonian Mechanics Hamiltonian of a moving charge in field Hamiltonian operator Hamiltonian path Hamiltonian problem Hamiltonian quaternion Hamiltonian quaternion algebra Hamiltonian structure Hamiltonian system Hamiltonian trail Hamiltonian vector field Hamilton Jacobi Bellman equation Hamilton-Jacobi-Bellman equation Hamilton-Jacobi-Bellman (HJB) equation Hamilton Jacobi equation Hamilton-Jacobi equation Hamilton Jacobi equations Hamilton-Jacobi equations Hamilton-Jacobi method Hamilton-Jacobi theory Hamilton-laceable graph Hamilton-Ostrogradskiǐ principle Hamilton Othanel Smit

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。