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人口机会窗口
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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。
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Reull Vallis
reuniens nucleus
reunion of fractured bones and tendons
Reunion of Scholar Han Hong and His Love
reusability
reusable component
reusable launch vehicle
reusable liquid rocket engine
re-usable protective clothing for medical use
reusable spacecraft
reuse and recycle
reuse library interoperability group
reuse library interoperability group, RLIG
reuse of converter gas
reuse of existing building
reuse of reclaimed water
reuse of waste heat of converter steelmaking
reuse technology of steelmaking slag
Reuss bound
Reuss´s hypothesis
Reuters
reutilization of resources
Reuven Ramaty High Energy Solar Spectroscopic Imager
REV
rev
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