fractionary distillation

• 分馏

fractionary distillation的用法和样例：

例句

1. Fractional distillation of petroleum is carried on in a still.
   石油的分馏在蒸馏器内进行。
2. It can be separated from each other by ordinary fractional distillation.
   两者通过普通的分馏彼此分离。