And it turns out that simply by counting the number of those spikes that occurs at a period of time.

随后，只要数一数在一定时间内,产生的尖峰脉冲的数量。

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These guys are just counting the number of people in the class for the registrar, so they're not doing anything more nefarious then that.

这些人只负责统计,班级人数然后交给注册处,所以他们不会做什么过分的事情

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