distillation cut的用法和樣例：
例句
- It is not always easy to separate a mixture of liquids into pure substances by fractional distillation.
用餾分蒸餾法把液體的混合物分成純物質，不總是輕而易舉的事。 - During the course of the TBP distillation, the distillates which accumulate between specified temperatures are withdrawn.
在真沸點蒸餾過程中，對規定溫度範圍內所收集的餾分可加以回收。
