basic repetition frequency

例句：

1. 1.The basic repetition frequency of the signal is 1000 Hz.
   信号的基本重复频率是1000赫兹。
2. 2.The device operates at a basic repetition frequency of 50 Hz.
   该设备以50赫兹的基础重复频率运行。
3. 3.The study found that the basic repetition frequency of the population was 100 Hz.
   研究发现，人口的基本重复频率为100赫兹。