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利用光纤技术测定ＤＪ塔板的液体停留时间分布，研究板上液体的流动特性，提出简便有效的板结构改进措施，为大型ＤＪ塔板的合理设计和进一步工业应用提供参考依据。
The liquid dwell time distribution of DJ tray was determined by optical fiber technology. The flow characteristics of the liquid on the tray were studied. The simple and effective measures to improve the plate structure were proposed to provide reference for the rational design and further industrial application of large DJ trays.