介绍对某炼油厂常减压蒸馏装置加热炉空气预热系统的两次改造情况。

Two revampings of air preheater of fired heater in atmospheric-vacuum distillation unit of a refinery was introduced.

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介绍对某炼油厂常减压蒸馏装置加热炉空气预热系统的两次改造情况。

Two revampings of air preheater of fired heater in atmospheric-vacuum distillation unit of a refinery was introduced.

youdao