“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	Architecture Institute of Japan architecture in the Dunhuang Sui and Tang Dynasty Murals architecture landscape planning architecture meteorology architecture modeling Architecture of Benin Kingdom architecture of metropolitan area network architecture of Ming and Qing Dynasties architecture of optical access network architecture of Qin and Han dynasties architecture of Shang and Zhou dynasties architecture of Song,Liao,Jin and Yuan dynasties architecture of Sui,Tang and Five dynasties architecture of system of systems architecture of Three Kingdoms,Jin,Northern and Southern dynasties architecture phenomenology architecture restoration architecture-sensitive database system Architecture Show Without Architect architecture work architrave archival access archival accession archival administration agency Archival Administration Conspectus

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