Zài / shíyóu / jīngliàn / guòchéng / zhōng / bùtóng / liú / fèn / huì / zài / bùtóng / wēndù / xià / fēnlí / chūlái

在石油精炼过程中，不同馏分会在不同温度下分离出来。

During petroleum refining, different fractions separate at different temperatures.