Raising the number of pulses per second actually lowers the amount of time the laser has to charge up for each pulse, which results in a weaker impact with the material.

提高每秒脉冲数实际上降低了激光为每个脉冲充电的时间，这样对材料的冲击较弱。

The kids in the Explorers Club were encouraged to do projects, and Jobs decided to build a frequency counter, which measures the number of pulses per second in an electronic signal.

探索者俱乐部的孩子们被鼓励做一些项目，乔布斯决定做一台频率计数器，这是用来测量一个电子信号中每秒钟的脉冲数量的。