n.多階段分組 multi-step grouping: 多級分組multi-stage (or multiple stage): 多級式,多段式multi-effect multi-stage vaporizer: 多效多級閃蒸蒸發(fā)器centrifugal multi stage pump: 多級離心泵compression; multi-stage: 多級壓縮下載手機詞典可隨時隨地查詞查翻譯