dependency ratio
短语词组
- aged -dependency ratio 老年人抚养〔比〕率;老年人抚养〔比
- old age dependency ratio 扶老比
- youth dependency ratio 受抚养儿童人口比;青年扶养率
- Dependency Ratio Ceiling 客工比率顶限
- Total Dependency Ratio 瞻养比率
- old dependency ratio 老年扶养率
- population dependency ratio 人口抚养比
- economic dependency ratio 经济信赖率 返回 dependency ratio