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对Φ２５不锈钢板网Ⅰ型矩鞍填料传质性能进行测试，提出该填料的气相总传质单元数的关联式，并与Φ２５聚丙烯阶梯环填料进行了对比．同时，还提出了低浓度ＮＨ３－Ｈ２Ｏ系统的ｐ－ｘ－ｔ关系式．
The mass transfer performance of Ⅰ type saddle-shaped fillers for Φ25 stainless steel mesh was tested. The correlations of the total mass transfer units in the gas phase were presented and compared with Φ25 polypropylene ring packing. At the same time, the p-x-t relation of low concentration NH3-H2O system is also proposed.