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- Conclusion The 3, 5-dinitrobenzoyl group was found to be a good leaving group at the anomeric position and O-glucopyranosides and oligosaccharides were stereoselectively synthesized in good yield. 结论3,5二硝基苯甲酰氧基作为良好的糖端基离去基用于寡糖的合成,具有反应条件温和、收率较高、立体选择性好的特点。
- Political forces had polarized into right and left groups. 政治力量已经极化为左、右两个集团。
- My first test was on the far left group (and the one furthest away from the HX's heating element). 我第一次的测试是在最左边的冲煮头（离HX加热系统最远的一个）。
- Leaving group in substitutions or eliminations 在取代或消除反应中的离去基团
- This work has been focused on the use of copper(I)-mediated anti-SN2’ allylic substitution reactions with non directing leaving groups. 论文提要内容： 在变化的经营环境当中，为了生存和发展，组织必须更灵活、弹性地加以应对。
- Since Wuzhou was opened to foreign trade in 1897, many businessmen came here for trade, leaving groups of terraced trade &residence architecture, as well as foreign buildings in Wuzhou. 1897年开埠后，梧州商贾云集，留下一座座富有特色的骑楼建筑，使梧州成为两广的骑楼博物城。
- Leaving her first job was a watershed in her life. 辞去她的第一份工作是她生活中的一个转折点。
- 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。
- She rushed off to work leaving her bed unmade. 她匆忙去上班连床都没铺好。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- Leaving his name off the list was a bad slip-up. 名单上没有他的名字是个严重的疏忽。
- 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。
- Do you think he is serious about leaving his wife? 你认为他真的想离开他的妻子吗？
- A stranger plucked at my sleeve as I was leaving. 我刚要离去，一个陌生人拽我的袖子。
- 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 got hung up with a phone call as he was leaving. 他刚要动身就被一个电话给耽误了。
- 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。
