另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.胞嘧 啶 核苷:当胞嘧啶通过β - 糖苷键与D- 核糖接合形成的核苷.Cytidine ( cytosine nucleoside ) A NUCLEOSIDE formed when cytosine is linked ...
The company believes the products will sell well in the run-up to Christmas.这个公司相信这些产品在圣诞节前夕一定会畅销。A machine of faulty design will not sell well.设计不良的机器销路不会好.A good book does not necessarily sell well.好书未必畅销....
The soldiers fired without provocation...士兵无缘无故就开枪了。She sometimes angers with little or no provocation.她有时无缘无故就生气.Her plea of guilty to manslaughter through provocation was rejected.她因受到挑衅而过失杀人的有罪答辩被驳回。He's got a fi...
结论确定的木香油蒸馏液直接包合法工艺简单,包合效果好,适于医院制剂室生产.OBJECTIVE To determine the best inclusion process Aucklandia Lappa's volatile oil by � � - cyclodextrin.经纯化得到的蒸馏液,可以采用三种方法中的任何一种来分析.The distillates obtained the purification proc...