key pulse

例句：

1. 1.The key pulse of the computer is incredibly fast.
   计算机的键盘脉冲速度非常快。
2. 2.The scientist noticed a key pulse in the data.
   科学家注意到数据中有一个关键脉冲。
3. 3.The researchers were able to detect a key pulse in the signal.
   研究人员能够检测到信号中的一个关键脉冲。