When a binary mixture is evaporated and the other component, e.g. a salt, has zero partial pressure for practical purposes, the process is simpler and is called evaporation in engineering.

• 当为实际用途浓缩二元混合物而另一组分的分压（如，盐）为零的时候，这个过程比较简单，在工程上称为蒸发。