vacuum redistillation

例句：

1. 1. The process of vacuum redistillation is crucial for the purification ofcrude oil.
   真空再蒸馏过程对于原油的净化至关重要。
2. 2. During the vacuum redistillation process, the solvent is removed fromthe crude oil.
   在真空再蒸馏过程中，溶剂从原油中被移除。
3. 3. The vacuumredistillation unit is designed toefficiently separate impurities from the distillate.
   真空再蒸馏装置旨在高效地将杂质从馏出物中分离出来。