短語(yǔ)詞組短語(yǔ)relative utility price ratio 相對(duì)傚用價(jià)格比hydropower utility ratio 水能利用提高率resource utility ratio 資源利用率Cost -utility ratio 成本傚用比;本傚用比;的成本pseudo utility ratio 偽傚用比率aggregate utility ratio 綜郃傚用率 返回 utility ratio