The sketch shows the apparatus used for distillation. 這張草圖顯示了這個(gè)蒸餾裝置。
The distilling unit separates oil into different products by taking advantage of fact that the hydrocarbons boil at different temperatures. 蒸餾裝置利用各種碳氫化合物沸點(diǎn)不同這一特性將石油分離為不同產(chǎn)品。