“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	right multiple right multiplication right multiplication ring right multiplicative group right Noetherian ring right nonsingular bilinear form right-non-singular bilinear form right nonsingular form right nonzero divisor right null object right of accessing to fishery right of access to mass media right of adaptation right of authorship right of bankruptcy exemption right of bankruptcy offset right of bill right of body right of broadcasting organization Right of character's portrait right of civil action right of claim right of claim for legacy distribution right of communication through information network right of compilation

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