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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By analyzing the error of parameters of Millikan oil drops experiment, the proper voltage and the proper time required for its falling through a specified distance are found.

通过对密立根油滴实验参数的误差分析，找出适当的平衡电压和下降一段距离所需要的时间。

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