This paper introduces the method of simple conversion measuring and calculation for gear rack thickness with depthometer as prime measuring tool and measuring Pin, measuring ball as auxiliary tool.

介绍了以深度尺为量具，以棒、球为辅件的齿条齿厚简易转化测量与计算方法。

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we asked. 'Measuring the relative speed and angles of the balls, the distances to the pocket and final placement of the white ball?'

我们问，“测算球的相对速度和角度，判断白球到球袋的距离以及最后的位置呢？

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Here Hare shows off an experiment in measuring the radiant temperature which is basically a ping pong ball painted gray connected to a temperature and humidity sensor.

野兔在这里炫耀测量辐射温度基本上是一个乒乓球实验描绘灰色连接的温度和湿度传感器。

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