英语翻译最好别直接用有道金山之类翻译软件来翻译,要是能我就不上这来了.Many different types of n

英语翻译
最好别直接用有道金山之类翻译软件来翻译,要是能我就不上这来了.
Many different types of network elements exhibit different behavior to the different symmetrical components.For example,as we will see shortly,transmission lines have one impedance for positive and negative sequence,but an entirely different impedance to zero sequence.Rotating machines have different impedances to all three sequences.
To illustrate the independence of symmetrical components in balanced networks,consider the transmission line illustrated back in Figure 20 of Installment 3 of these notes.The expressions for voltage drop in the lines may be written as a single vector expression: