distillation under vacuum

• 真空蒸馏

distillation under vacuum的用法和样例：

例句

1. These higher boiling components will be removed by vacuum distillation of the provided sample to permit facile gas chromatographic separation.
   为了能顺利地进行气相色层分离，可以对所提供的样品进行真空蒸馏，把较高沸点的混合物除去。
2. The paper summarized the principle of Molecule distillation technology and the difference from the general vacuum distillation.
   阐述了分子蒸馏的基本原理及其区别于普通真空蒸馏的主要特点。