Strengthening effect of bagasse pulp with grafting copolymer of amphoteric guar gum .
两性瓜尔胶接枝共聚物对蔗渣浆的增强作用。
Proteins behave either as acids or bases and are said to be amphoteric .
蛋白质习性又像酸又像碱，因此说它是两性的。
Studies of the preparations of amphoteric ion exchange fibers with carboxyl and pyridyl groups .
含羧基和吡啶基两性离子交换纤维的制备研究。
Aesthetics between sexes or the amphoteric esthetics are a common mainstream preposition in the chinese and foreign history of literature , but it is neglected since long ago in the history of literature .
摘要两性审美或者两性美学是中外文学史上一个共同的主流命题，但是长期以来被湮没在文学史中。
In this paper applications and developing process of acrylic resin as retanning agent were discussed , and the synthesis and development of amphoteric acrylic polymer syntan were discussed .
