“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	urban road traffic surveillance system urban road tunnel urban-rural coordination urban-rural development urban-rural development transformation urban-rural differences urban-rural ecosystem urban-rural fringe urban-rural governance urban-rural gradient urban-rural income disparity urban-rural integrated household survey urban-rural integration urban-rural integration development urban-rural planning and research center urban-rural regional coordination urban-rural relations urban-rural relationship urban-rural space control urban-rural territorial system urbanscape urban school Urban Sculpture urban search & rescue urban search & rescue training centre

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