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- By substituting one carboxymethyl group in the molecule of EDTA with a long chain alkyl,a polyfunctional surfactant having both surfactivity and ability of chelating metal ions was obtained. 以长链烷基替代EDTA分子中的一个乙酸基,使其改性为既具表面活性又有络合金属离子能力的多功能表面活性剂。
- Experimental results showed that the treated fibers had much higher hydroscopicity than the untreated ones, due to the highly absorbent carboxymethyl groups in the fiber structure. 实验结果显示,由于处理后纤维的结构中含有高吸水性的羧甲基基团,处理后的纤维比初始纤维有更高的吸湿性。
- Effect of Carboxymethyl Group Substitution Degree on Biodegradability of Starch 羧甲基取代度对淀粉生物降解性能的影响
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- Synthese and characterization of carboxymethyl group substitutive polyanionic membrane PVA material 羧甲基取代PVA聚阴离子膜材料的制备及表征
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- I come upon a group of children play in the street. 我遇到一群孩子在街上玩耍。
- He goes about with a group of nice boys. 他经常和一群好孩子在一起玩。
- He is a the most brisk young man in this group. 他是这个小组中最活跃的年轻人。
- He showed me a photo of a family group. 他给我看一张合家欢的照片。
- The chief accountant of a manufacturing group. 一个制造业集团的总会计师。
- The hunting group had good sport today. 今天打猎小组满载而归。
- I stand out in a group interview. 在集体面试中脱颖而出。
- He looked around the small group of mourners. 他环顾一下那一小群的送葬者。
- The group of destroyers damaged the bus. 那群破坏者毁坏了这辆公共汽车。
- He is the mainstay of our theatre group. 他是我们剧组的台柱。
- The group tour the museum at a leisurely pace. 这个旅游团悠闲地参观这个博物馆。