经过原油换热器，热的原油被送至初馏塔第四层塔盘。

From the crude heater, the hot crude oil is delivered to the crude tower above the fourth tray.

youdao

经过原油换热器，热的原油被送至初馏塔第四层塔盘。

From the crude heater, the hot crude oil is delivered to the crude tower above the fourth tray.

youdao