接触精馏

【化】 contact rectification

接触的英语翻译：

contact; contiguity; get in touch with; meet; osculate; osculation; tangency
touch
【医】 c.; contact; contiguity; hapt-; hapto-; per contiguum; taction; tactus
touch

精馏的英语翻译：

rectify
【化】 rectification; rectify; rectifying; selective evaporation