目的: 采用分光光度法,以芦丁为标准品测定异叶青兰中的总黄酮含量. Objective: Flavonoids in Dracocephalum heterophyllum was investigated by spectrometric method with rutin as standard material.
He was shrewd in his personal assessments.他总能对人作出精明的评价.Surveys show about two - thirds use such assessments, while half employ personality tests.调查表明,约有 三分之二 的公司采用了这种测评; 而一半的公司则采用工作人员个人品质测试.Both sides were still too caut...
We move into the passageways leading to the West End shopping mall.我们走到通往西面购物广场的通道.The soldiers crept carefully down the rocky passageways.士兵们蹑手蹑脚小心翼翼的爬下布满岩石的过道.Labyrinth ( maze ): System of intricate passageways and Bli...
试比较which和what用作限定词和代词时,在疑问句中的用法.Compare the use of which and what as determiners and pronouns in questions.有关日期的排序修饰符的优先级低于sortByname限定词.Sort qualifiers involving date are secondary in precedence to the sortByName qualif...