最低回流比率 minimum critical power ratio: 最小臨界功率比minimum current ratio requirement: 最低流動比率要求minimum freeboard to beam ratio: 最小干舷與船寬比minimum leverage ratio: 最低舉債比率minimum limit of forging ratio: 最低鍛造比下載手機詞典可隨時隨地查詞查翻譯