“人口机会窗口”的概念、定义、翻译、参考文献-科学参考

单词	人口机会窗口
释义	人口机会窗口 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	provider prefix provide to demand providing jobs instead of reliefs province atlas Province, Autonomous Region and Municipality Pharmaceutical Chemistry Committee province managing county Province of Canada Provinces (Autonomous Regions, Municipalities) Library Work Rules Provincia de Alajuela Provincia de Panamá Provincia de Panamá Oeste Provincia de Puntarenas Provincia de San José Provincial Administration Commission provincial and county financial reform provincial boundary buffer zone provincial capital city provincial education bureau Provincial E-government Affairs Office provincial environmental protection five-year plan provincial examinations Provincial Examinations of Aboriginal Office provincial governor Provincial Hebei Clapper Opera Theatre provincial informatization leading group

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。