In the rectification section, temperature gradually ( ) up the tower height.

The liquid in the distillation section of the fractionator that spills off the top of the tower layer by layer is called ( ).

The rectification section refers to ( ).

The lifting section means ( ).

The following statement about the distillation section is wrong ( ).

A complete rectification column consists of three parts: the rectification section, ( ), and the feed section.

The change of light and heavy components in the liquid phase of the distillation section is ( ).

Distillation achieves separation according to the ( ) difference of the components in the mixture.

Normally, the ( ) atmospheric and vacuum distillation unit process is relatively simple.

The thermodynamic basis of the distillation process is ( ).

Distillation is the method of separating ( ).

Increasing the reflux ratio will make ( ).

The reflux ratio is ( ).

What is wrong with the following statement about reflux ratio is ( ).

Reflux ratio size selected according to incorrect is ( ).