例句與造句

1. By two - step chromatography , rhigf - i was purified to 90 % of purity . western blot indicated that the recombinant protein could react with antibodies against higf - i
   蛋白純度用tris - tricinesds - page鑒定， westernblot檢測(cè)純化的重組蛋白的免疫學(xué)活性。
2. It's difficult to find step chromatography in a sentence. 用step chromatography造句挺難的