短語詞組短語government debt -service ratio 國債償債率Debt service coverage ratio 債務(wù)償付比率;利息保障率;債務(wù)送還比率foreign debt service ratio 外債清償率debt service converge ratio 償債保障比率external debt service ratio 外債償還率corporate longterm debt service ratio 公司長期償債比率debt -to-service coverage ratio 債覆蓋倍數(shù);使用償債覆蓋倍數(shù) 返回 debt service ratio