reduced pressure distillation

例句：

1. 1.The process of reduced pressure distillation is used to separate impurities from a liquid.
   减压蒸馏过程用于从液体中分离杂质。
2. 2.In this case, the reduced pressure distillation was used to remove the water from the oil.
   在这种情况下，使用减压蒸馏去除油中的水分。
3. 3. The reduced pressure distillation method is more energy-efficient than traditional methods.
   与传统方法相比，减压蒸馏方法更节能。