overhead reflux line 架空回流线
Overhead circulating reflux pump 塔顶循环回流泵
·2,447,543篇论文数据，部分数据来源于NoteExpress
The distillation conditions including overhead pressure, reflux ratio for the recovery of 1,2- propylene glycol were studied.
本文还研究了精馏的一些操作条件对1，2-丙二醇精制过程的影响（塔顶压力、回流比等）。
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