distillation under vacuum的用法和樣例：
例句
- These higher boiling components will be removed by vacuum distillation of the provided sample to permit facile gas chromatographic separation.
為了能順利地進行氣相色層分離，可以對所提供的樣品進行真空蒸餾，把較高沸點的混合物除去。 - The paper summarized the principle of Molecule distillation technology and the difference from the general vacuum distillation.
闡述了分子蒸餾的基本原理及其區別於普通真空蒸餾的主要特點。
