Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydroxypropyl � � cyclodextrin via selective oxidation.通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精....
The plan has all the hallmarks of being a total failure.这个方案具有彻底失败的一切标志.The killing had the hallmarks of a professional assassination...这起谋杀案具有职业暗杀的特征。The burglary had all the hallmarks of a professional job.从各方面来看,这起入室行...