vacuum distillation process

例句：

1. 1.The vacuum distillation process is used to remove impurities from crude oil.
   真空蒸馏过程用于从原油中去除杂质。
2. 2.The vacuum distillation process is essential for the purification of chemical compounds.
   真空蒸馏过程对于化学化合物的纯化至关重要。
3. 3.In the vacuum distillation process, the solvent is removed by a vacuum pump.
   在真空蒸馏过程中，溶剂通过真空泵被移除。