betaine造句
The
betaine will collapse to the alkene only when these two functions are eclipsed.
只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃.
Ingredients: Purified water, Cucumber Extract, Hyaluronic Acid Myristic Acid, Cocoamidopropyl
Betaine.
主要成份: 维他命E, 玻尿酸,甘草, 小黄瓜萃取, 胺基酸, 左旋C磷酸镁盐.
The preparations, properties and its applications of
betaine amphoteric surfactants is discussed in the paper.
本文主要论述甜菜碱系两性表面活性剂之制备 、 性能及其应用.