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

单词	population opportunity window
释义	population opportunity window Encyclopedia 理学人口统计学释 population opportunity window人口机会窗口总人口“中间大，两头小”的结构，使得劳动力供给充足，而且社会负担相对较轻，对社会经济发展十分有利的时期。所谓“中间大”，是指15～64岁的劳动适龄人口规模大；所谓“两头小”，是指0～14岁的青少年人口和65岁及以上的老年人口规模小。
随便看	molecular distillation molecular distillation of fish oil molecular docking molecular docking and scoring functions molecular docking method molecular dynamics molecular dynamic simulation，MD molecular dynamics in mechanical engineering systems molecular dynamics integration method molecular dynamics method molecular dynamics method, MD method molecular dynamics methods molecular dynamics simulation molecular dynamics simulation, MD molecular dynamics simulation of polymer molecular dynamics simulations molecular ecological adaptation of weeds molecular ecology molecular electric dipole moment molecular electrocatalysis at a liquid/liquid interface molecular electronic configuration molecular electronic device molecular electronics = molecular electronics 分子电子学 = molecular electronics 用作单分子电子学

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。