求翻译，专业人士给翻译一下。 Abstract：objective to investigate serine protease and the determination of separation and purification methods of its activity.Methods to extract from soya-bean milk soybean trypsin inhibitor，with epichlorohydrin activation method with chitosan activation carrier，the carrier for immobilized enzyme，using affinity chromatography separation and purification serine protease and casein flat method to detect serine activity.Results separation got serine protease and measured the activity for U/mg.Conclusion this method for the separation and purification technology serine protease effect is better.
水性聚氨酯固色剂对苎麻色织物的固色研究是什么？ 由于许多常用的染料分子中含有磺酸基或羧酸基等水溶性基团，它们的染色牢度，特别是耐洗色牢度较差，与织物的结合力差，需固色后处理。固色剂可与染料分子形成不溶性盐，。
使用环氧树脂胶粘剂有什么优点或缺点？ 导读：小编为大家介绍环氧树脂粘胶剂的一些性能特点，环氧树脂是指高分子链结构中含有两个或两个以上环氧基团的高分子化合物的总称，属于热固性树脂，代表性树脂是双酚A型。
