A numerical method, that extracts the greatest common divisor by the least square, is discussed in this paper. It would be the proper method to manage the data of Milliken oil drop experiment.

本文讨论一种基于最小二乘原理求取最大公约数的数值方法，它是处理密立根油滴实验数据较为理想的方法。

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Millikan oil-drop experiment is one of classical experiments in physics, and it is still essential in modern physics experiments.

密立根油滴实验是物理学的经典实验之一，至今仍是近代物理实验中的必做实验。

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With oil, gas, water as working fluids, the experiment studies of frictional pressure drop characteristics of oil gas, gas water two phase flow in vertical helically coiled tubes were carried out.

分别以油气、气水为工质，对立式螺旋管内气液两相流的摩擦阻力特性进行实验研究。

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