第三人称单数： fractionates
过去式： fractionated
过去分词： fractionated
现在分词： fractionating

The electrophoresis picture of ammonium sulfate fractionate porcine serum protein ( ph4.5 )

硫酸铵分级盐析血清蛋白(ph4.5)

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 .

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。

Ultrafiltration is used widely to concentrate and fractionate milk prior to cheese production and to separate whey proteins from whey .

超滤广泛的应用于干酪生产前乳的浓缩与分级，以及从乳清中分离乳清蛋白。

Consequently , we must clarify the meanings of supervision system after administrational decision , expand its principal part , fractionate its content and constitute corresponding system .

因此，必须明确行政决策事后监督制度的含义，扩展行政决策事后监督的主体，细化行政决策事后监督的内容，并建立相关制度和法规。