As an example, Finite element analysis and optimization design are made to a voltage transformer of rating primary voltage 35KV, rating secondary voltage 100V, rating frequency 50HZ.

并以额定一次电压35KV，额定二次电压100V，额定频率50HZ的电压互感器为例，进行了有限元分析计算和优化设计。

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An RF power meter has one major drawback: it cannot measure frequency, so it may give an "approved" rating to a defective mobile telephone, as in the following two examples.

功率计的一个主要缺点是：不能测量频率，因此它会对一个有缺陷的手机给出“通过”，就像下面的两个例子。

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Generally, the higher the rating web site, the frequency of updates sooner.

一般来说，网站网页等级越高，更新的频率就越快。

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In marketing we measure television advertising by reach, frequency and gross rating points and if you extrapolate from that that the more feet you have on the street singing your praises and repeating those core messages at every turn you will be successful too.

FORBES: Sharpen Your Marketing By Measuring What Matters Most