本文介绍了一种自制的时间测量仪，利用此仪器改进了密立根油滴实验的时间测量方法并对测量结果和方法进行了比较。
A self - made instrument for measuring time is introduced. The method of measuring time in Milton oil experiment is improved and the result is compared with the method.
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。
Millikan oil-drop experiment is one of classical experiments in physics, and it is still essential in modern physics experiments.
从理论上给出了密立根油滴实验中油滴下落达到终极速度前的下落距离与速度之间的函数关系；
In this essay, the function relation between the velovity and the distance of the oil drop before it got the ultimate velovity was given.
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