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.
辞典例句
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.
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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.
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Choline dehydrogenase ( CDH ) isolated from Escherichia coli, can help the expression of glycine betaine efficiently.
源于大肠杆菌(Escherichiacoli)的胆碱脱氢酶 ( cholinedehydrogenase, CDH ) 能有效催化甘氨酸甜菜碱的合成.
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