传质区 meaning in Chinese

mass transfer zone

The compound tray researched in this paper consists of dual - flow tray and 50 - 1 ^ omm high structural packing which is directly put under the dual - flow tray . it has three mass transfer sections that is the foam section on the tray , the film section in the packing layer and the shower section under the packing , so it has very high mass transfer efficiency
本文研究的复合塔板是在穿流筛板之下紧贴一层50 150mm的规整填料所构成，它有三个传质区，即塔板上的泡沫区、填料层内的液膜区以及填料层下的淋降区，因此，具有很高的传质效率。