All investigators in mass transfer assumed plug flow of gas in packed beds.

所有传递问题的研究者都假定在填充床层中的气体为活塞流。

In this paper, a class of more general plug flow reactor model is discussed.

本文考虑了一类较一般的塞流反应器模型。

No obvious change is observed for the transition between plug flow and slug flow.

研究中没有观察到表面性剂对塞状流与弹状流转换的影响。

The flux in the riser reactor is close to plug flow, which greatly demotes the back mixing.

并且使提升管反应器的流型更加接近活塞流，进一步减少返混。

Plug flow reactor(PFR) and Continuous stirred tank reactor(CSTR) were studied to compare their performance for treating dairy manure.

对推流式反应器（PFR）和完全混合式反应器（CSTR）用于牛粪液厌氧消化的性能进行了比较研究。