截留分子量相同或相近的超滤膜，膜孔形态参数差别很大。
The parameters of UF membrane pore were quite different even if the membrane had the same molecular weight cut-off.
选择适当的膜液组成和制备条件，可以制得截留分子量为67000的超滤膜。
The UF membrane with molecular weight cut off 67000 can be made by selecting proper composition of casting solution and preparation condition.
结果表明：废水经截留分子量为8000的超滤膜，可回收几乎所有的蛋白质；
The results showed that almost all protein could be recovered for treating whey wastewater by ultrafiltration with 8000 daltion molecular weight cut-off membrane.
选择适当的膜液组成和制备条件，可制得截留分子量分别为2000,6000,10000的超滤膜。
The UF membrane with molecular weight cut off 2000, 6000 and 10000 can be made by selecting proper composition of casting solution and preparation condition.
利用超滤技术对咸鸭蛋蛋清直接脱盐，选用截留分子量为10000的超滤膜可使脱盐率达到83.81%，蛋白质截留率达到86.1%。
The results showed that ultra filtration by the molecular mass cutoff 10000 was suitable for egg white, the desalinization rate was 83.81%, and the protein retention was 86.1%.
本文以聚砜和磺化聚砜为原料，制备了低截留分子量的共混超滤膜，此种膜具有适中透水量，对分子量3000的PEG截留率在90%以上。
The blend ultrafiltration membrane of the polysulfone and sulfonated polysulfone has been obtained. This membrane has moderate water flux, more than 90% retention for PEG 3000.
本文以聚砜和磺化聚砜为原料，制备了低截留分子量的共混超滤膜，此种膜具有适中透水量，对分子量3000的PEG截留率在90%以上。
The blend ultrafiltration membrane of the polysulfone and sulfonated polysulfone has been obtained. This membrane has moderate water flux, more than 90% retention for PEG 3000.
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