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age structure
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anim.husb.
年龄结构
指畜群中不同年龄家畜(尤其母畜)组合的比例和情况
demogr.
年龄分布
;
★
年龄结构
;
人口年龄结构
insur.
账龄结构
tech.
年龄构成
age-structure
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econ.
人口年龄结构
age structure
:
7 phrases
in 5 subjects
Business
1
Demography
2
Economics
2
Geography
1
Technology
1
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