It is a guide for the vacuum deep cut revamping on atmospheric and vacuum distillation unit.

结果表明对常减压装置减压深拔技术改造有一定的指导意义。

youdao

It is a guide for the vacuum deep cut revamping on atmospheric and vacuum distillation unit.

结果表明对常减压装置减压深拔技术改造有一定的指导意义。

youdao