Methods: the multiple proportion dilution of the above mentioned compounds were selected and used in vitro experiment.

方法：运用液体倍比稀释法对以上药物进行体外实验研究。

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A method for correcting influence of the indicator in REDOX titration, based on the principle of multiple proportion to calculate influential amount, is proposed.

本文报道了一个基于倍比原理计算氧化还原滴定指示剂影响的校正方法。

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Based on a current-mode integrator and proportion circuit multiple outputs by AOA, multifunctional second-order current-mode filter was proposed.

以AOA电流模式多路输出积分器和AOA电流模多路输出比例电路为基础，设计了多功能二阶电流模式滤波器。

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To examine this phenomenon further, I ran multiple regression analyses with the party score as the dependent variable and various institutional data points (controlling for tuition, proportion of students receiving Pell grants, overall enrollment, average SAT scores and whether schools were public or private) as the independent variables.

FORBES: Play Hard, Work Little: Life on America's College Campuses