Several theoretical deductions and simple analytical methods of the typical link transfer function in the automatic control system are introduced in this article.
介绍几种自动控制系统中典型环节传递函数的理论推导及简化分析方法。
Several kind of nor-mal phase shifters and their analytical methods are introduced here.
分别介绍了几种较为常用的移相器，并给出了相应的理论方法。
In recent years several authors have proposed simplified analytical methods to calculate the ultimate strength of unstiffened plates.
最近几年，一些作者提出了计算平板极限强度的一种简化解析方法。
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