The structure and performance of perforated plates of non-uniform perforation are studied in a plasticcolumn and the mass transfer efficiency of oxygen desorption is analysed.
用有机玻璃塔研究了非均匀穿流塔板的结构与性能,分析了氧解吸的传质效率。
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This column offers as its European of the Year Playmobil man, a short, stiff-legged, eternally smiling, plastic figure first created three decades ago, and today churned out at a rate of 80m a year.