A multitude of separations are accomplished by distillation, but its most important and primary function in the refinery is its use for the separation of crude oil into component fractions.
许多分离过程是通过蒸馏进行的，但蒸馏在炼油厂中的最重要和主要的功能则是它在将原油分离成不同馏分过程中的作用。
The effects of solvent, temperature, additive and separation time on the refinement process of crude anthracene by using emulsion-crystallization were reported.
采用乳化结晶法，研究了粗蒽精制过程中溶剂、温度、助剂及分离时间的作用。
The troublesome separation of column chromatography would be avoided as crude product recrystallized inn-butanol.
粗产物采用正丁醇重结晶，避免使用较繁琐的柱层析分离。
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