This complex reaction is characterized by a keto - enol tautomerism equilibrium and ester exchange reaction.此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成.We have already met one series of specific enol equivalents.我们已经遇到过一系列有特效的烯醇等当物.Keto...
The high accuracy goniometer is generally used as standard of goniometer measurement.高准确度的测角仪一般作为角度计量标准器使用.Goniometer - An instrument used in measuring angles.角度计 - 用来测量角度的设备.The TV goniometer measures the angle deviatio...
他对同事们草草敷衍的工作鲜有耐心。He has little patience for sloppy work from colleagues.她对任何事情都不抱消极或敷衍的态度.She could not be negative or perfunctory about anything.那些年,我的感谢更多地成为一种敷衍的反应.In those years my thank - you became more of a perfun...
Wolf preys on various animals, securing some by craft, some by strength, and some by fleetness.狼捕食各种动物, 有的用狡计, 有的用强力, 有的靠捷速.Can realize with the machine match the fleetness print the word.与墨轮机配合可实现快速印字.How does the fleet...