利用自制装置演示了声源作圆周运动的多普勒效应，并应用图谱分析软件得到频率分布图。

Doppler effect can be demonstrated by manufactured device when the sound source is in circular motion. The frequency spectrum is gained with chart spectrum analysis software.

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发现带电粒子以电荷群的作用力为向心力做圆周运动时，有一常数乘以频率等于带电粒子的动能。

It finds that there is a constant multiplied by frequency which is equal to the kinetic energy, when a charged particle does circular motion for the centripetal force product by the charge group.

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同轴度自动检测系统根据激光位移传感器扫描频率，在圆周面上选择72个采样点。

The 72 sampling points on the circumference of a spare part was set by the automatic detecting system of coaxial degree according to the scanning frequency of the laser sensor.

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It's related to the frequency with which you go around the circle Why is that?

它也跟圆周运动的频率有关,为什么呢

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