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 .