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Age dependency (ratio)是什么意思
中文翻译年龄抚养比率
网络释义
1)Age dependency (ratio),年龄抚养比率2)aged-dependency ratio,老年人抚养(比)率3)the ratio between working and retired population,老年抚养比4)Theoretical Old Support Ratio,理论老年抚养比5)Actual Old Support Ratio,实际老年抚养比6)age-specific rate,年龄别比率