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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 ...
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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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更新时间:2026/9/29 0:34:04