14通采用
发和冷凝的方法,使均匀混合的液体溶液
的各个组分分离出
。
,
发和冷凝这个步骤反复进行了很多次。
Separation of a liquid solution (homogeneous mix) into its components through evaporation and condensation. In a fractionary distillation the process is repeated several times in a column.