“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	measurement and evaluation in sports measurement-based quantum computation measurement calculus measurement characteristics of flow meter measurement control system measurement-control system on the off gas information measurement data access measurement environment measurement error measurement error in epidemiologic studies measurement error model，error-in-variables model measurement for mineral electrical properties measurement for the use of maritime space measurement fusion measurement inaccuracy measurement in quantum mechanics measurement instrument with dynamometer measurement management system measurement method measurement methods of optical thin film measurement model measurement noise measurement of aeration rate of flotation machine measurement of angles measurement of antenna parameters

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