【計】 fractionator

分餾的英語翻譯：

【化】 fractional distillation; fractionation; fractionation by distillation
selective evaporation

回流的英語翻譯：

circumfluence; refluence
【化】 back flow; circulation reflux; contra-flow; flow-back; reflux
refluxing
【醫(yī)】 backflow; palirrhea; reflux reflextonus; refluxing; regurgitation
return; return current