以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
Results: The display of vitreous hemorrhage was classified into two typical sonography.结果: 患眼玻璃体内表现可归纳成两种典型的超声特点.After the repair of the corneosclera wound , artificial vitreous implantation was conducted.结果:术后角膜水肿及前房炎症反...
Her sounds began cascading gently.他的声音开始缓缓地低落下来.Thankfully, cascading dialogs have been falling from grace, but examples can still be found.幸好, 级联对话框已经失宠, 但我们仍然可以找到级联对话框的例子.First of all, cascading menus are to be avoided...
世界黄金协会是总部设在伦敦的 非 营利的旨在促进黄金消费的组织.WGC is a London - based non - profit organization that promotes gold consumption.非营利的代理商会在为 非 营利的组织销售方面对课程是相当适当.A nonprofit agency would be quite appropriate for a course in marketing for ...