"The idea is that the time that the pulse is on is about a quarter of a period of a vibration, " Sankey said.
桑基解释：“办法就是在四分之一的震动周期中施加脉冲，就像推小孩儿荡秋千一样，一个脉冲推动一次”。
2
This modification caused a heavy "pulse" of load on the server, which made it easier to measure the time it took for resultant replications.
修改之后会给服务器带来较大的“负载冲击”，这有利于测量完成最终复制所需的时间。
3
Your surgical procedure will depend on whether your project just needs the electronic pulse generator. or a clock with working hands that continues to tell time. If you just need the clock's ticker.