以下为句子列表:
英文: They used liquid and gas chromatography to fractionate the sample into its molecular constituents; an electron beam then fragmented the separated molecules in a mass spectrometer to produce a spectrum indicating the basic chemical components.
中文: 他们运用液相与气相层析法,将样本的组成分子分开,然后导入质谱分析仪,以电子束使已分离的分子断裂,进而产生出可识别基本化学组成的图谱。
更详细...
英文: Sodium Chloride Step Gradients Centrifuge to Fractionate Foreign DNA Fragment for Microinjection
中文: 氯化钠密度梯度离心法制备用于显微注射的外源DNA片段
更详细...
|