短語詞組短語aged -dependency ratio 老年人撫養(yǎng)〔比〕率;老年人撫養(yǎng)〔比old age dependency ratio 扶老比youth dependency ratio 受撫養(yǎng)兒童人口比;青年扶養(yǎng)率Dependency Ratio Ceiling 客工比率頂限Total Dependency Ratio 瞻養(yǎng)比率old dependency ratio 老年扶養(yǎng)率population dependency ratio 人口撫養(yǎng)比economic dependency ratio 經濟信賴率 返回 dependency ratio