存款準備金率法定準備金率relative risk reduction rrr: 相對危險度降低率required rate of return =rrr: 必要報酬率rrr routing with resource reservation: 資源預留選路vone rrr evo: 油車rrr radio relay reference point: 無線中繼參考點下載手機詞典可隨時隨地查詞查翻譯