...the internationally agreed rules of chemical nomenclature.国际公认的化学命名规则It developed variations in nomenclature and in substance.它在名称上和实质上都发生了一些变化.Multiply unsaturated compounds are usually best named by the IUPAC nomenc...
Multiply unsaturated compounds are usually best named by the IUPAC nomenclature.多重不饱和化合物一般最好用IUPAC命名法来命名.Charles trotted out his little bit of scientific nomenclature.查尔斯炫耀他那点科学名词.It developed variations in nomenclature ...
Pouches are a peculiarity of marsupials.腹袋是有袋动物的特色.He had a long lugubrious face with drooping jowls and soft pouches beneath the eyes.他有着阴沉的长脸,下垂的下颚,眼睛下面的眼袋松泡泡的.Under my eyes the pouches were heavy.我眼睛下的眼袋很深。There were ...
这些参数导致了特定固定相的分离行为.These parameters contribute to the chromatographic behaviour of a particular stationary phase.方法使用薄层色谱法, 以硅胶 GF254 为固定相.Methods: TLC method was applied , the stationary phase was GF _ ( 254 ).考察了一些手性化合物...