phase-difference rate of change

• 相位差变化率

phase-difference rate of change的用法和样例：

例句

1. The method for generating the second signal is put forward based on the period rule of the phase difference for two frequency signals with the frequency difference.
   摘要利用两个有一定频差的频率信号相位差变化的周期性规律提出了一种秒信号产生方法。