介绍了环糊精衍生物的种类及主要特性.Kinds and important characteristics of cyclodextrin derivatives are also introduced.以糊精作为造孔剂及粘结剂,制备出了多孔碳化硅陶瓷.The dextrin was used as pore - making agent and binder.我们应确定糊精的值以便于存在时我们明确地评估淀粉酶的活性.Dextrin v...
I heard the most heartrending screams and moans.我听到了最让人揪心的尖叫和呻吟。Round one ends, to a tumult of whistles, screams and shouts.第一局比赛结束了,口哨声、尖叫声与呼喊声一片喧哗。His face contorts as he screams out the lyrics.当他吼出这些歌词的时候,脸都扭曲了。The sh...