继电器往往会以开关时间规定一个重复率，或者说是工作频率，使用时需低于该值。
A repetition rate, or operating frequency, lower than that allowed by the switching times is often specified for a relay.
同样，你也可以很容易地创建一个类别来专门处理你的客户的重要商业指标，比如，ROI，点击率，转化量，或者重复顾客数。
Likewise, it would be very easy to create a category that deals exclusively with your client's important business metrics, for example, ROI, click-through rates, conversions, or repeat customers.
不管您使用什么技术来实现代码，重复地更新一个对象会导致高访问率储存库的性能下降。
Regardless of the technique you use for the implementation code, repeatedly updating a single object can cause a performance hotspot in the repository if the volume is high.
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