Theoretical consideration is taken up to the increase in radon daughter's concentration under local purification.

从理论上分析了净化过程中氡子体浓度增长的规律。

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The theoretical relations between the antifreeze activity and concentration of antifreeze protein are given by using of the relation between the saturation fraction and antifreeze activity.

进而，利用饱和分数与抗冻活性之间的关系，给出抗冻活性与抗冻蛋白浓度的理论关系。

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By the theoretical deduction of electrochemistry, the method for rectifying the Nernst's Equation when determining one ion's concentration in a multi-ion-mixed solution was put forward.

通过电化学理论推导，提出了在测定多种离子的混合溶液中某一种离子的浓度时，对电势的能斯特响应式的修正方法。

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