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针对超滤过程中的两种操作工艺——间歇分批操作和连续操作 ,对小分子的不同分离程度进行对比说明 ,提出以 J值的大小作为选择工艺的基础
In view of the two operation processes in UF process, batch batch operation and continuous operation, the comparison of different separation degree of small molecules is made, and the value of J value is taken as the basis of selection process