1)reflux,回流，分馏2)reflux tank of pre-fractionator,预分馏塔回流罐3)external reflux of column,分馏柱的外回流4)external reflux of column,分馏柱外回流5)reflux distillation,回流蒸馏6)thestructure of 1st fractionator reflux drum,第一分馏塔回流罐结构
用法和例句
The corrosions of reflux tank of pre-fractionator in an oil refinery were analyzed;proposals and measures for avoiding corrosion were suggested in this paper.