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单词
aged-child ratio
释义
aged-child ratio
网络
老年幼年比;比
网络释义
1.
老年幼年比
统计学专业词... ... 年龄别生育率 age-specific fertility rate
老年幼年比
aged-child ratio
综合指数 aggregate index number ...
yingyucihui.scientrans.com
2.
比
④老少
比
(
Aged-Child Ratio
)是指老年人口数与少儿人口数之比。老少比 同时考虑了人口年龄构成中高、低两头的年龄组的 …
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hinged presser foot
hinged pressure relief panel
hinged prow
hinged ramp
hinged rudder
hinged sectional vessel
hinged shoe
hinged shoring altar
hinged side
hinged structures
hinged support
hinged support
hinged table
hinged temporary deadlight
hinged toolholder
hinged tray
hinged truss
hinged type connecting rod
hinged type entry guide
hinged-type trestle
hinged upon
hinged-valve
hinged valve
hinged, vane
hinged watertight door
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更新时间:2026/7/21 14:23:40