frequency-selective system
... frequency selective network 选频网络 frequency selective system 选频系统 frequency selective voltmeter 选频伏特计 ...
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利用线路的分布参数电路理论，分析了线路的选频特性，提出了广域系统低频振荡的谐振传播机理。
The characteristic of selecting frequency of lines is analyzed based on distributed parameter circuit theory. Then, the resonance mechanism of low frequency in wide area is proposed.
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