项目还将升级F - 35无限频率测试系统的接口单元，该测试系统主要反映系统如何在真实环境下作战。

The project also included an update of the interface units for the F-35 radio frequency test system.The test system reflects how the system would operate under real-world conditions.

youdao

项目还将升级F-35无限频率测试系统的接口单元，该测试系统主要反映系统如何在真实环境下作战。

The project also included an update of the interface units for the F-35 radio frequency test system. The test system reflects how the system would operate under real-world conditions.

youdao

如果在上面,悬挂1公斤物质，我能够计算出,振荡的周期，1除以周期,等于频率，我相信,等于大概38赫兹。

So if now I hang on it a mass of one kilogram, I can calculate the period of one oscillation, and one over the period F is the frequency F, and I believe that is something like 38 hertz.

youdao

Frequencies, how many times you go around, f is revolutions per second It's called the angle of velocity.

频率就是一秒转多少圈,因为 f 是每秒转过的圈数,这就是角速度

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