density gradient

常见例句

Objective To establish an rapid and simple discontinuous density gradient method for purification of islet cells from rat pancreas.
目的探索用简化的单一密度梯度法建立快速纯化大鼠胰岛细胞的方法。
Recombinant adenoviruses were generated by packaging of HEK293 and purified by velocity density gradient centrifugation in caesium chloride solutions.
腺病毒载体经HEK293细胞包装产生含反义片段的重组腺病毒，用氯化铯密度梯度离心法获得纯化的高滴度腺病毒；
During the impurity radiation, the density perturbation driven by density gradient couples with the temperature one and then affects the electrostatic potential one.
电子密度梯度直接影响密度涨落，并通过杂质辐射与温度涨落相互耦合，进而影响静电势涨落。