“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	theory of fiber bundles theory of fields theory of films theory of films in China theory of firm reputation theory of five elements theory of five phases theory of Forms theory of forms theory of forms of government theory of functions theory of functions of a complex variable theory of functions of a real variable theory of functions of several complex variables theory of functors theory of games Theory of Garden Art theory of gearing theory of general relativity theory of geodesy theory of geometric construction theory of geometric objects theory of geomorphic thresholds theory of geomorphological level surface theory of globalization of law

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。