Different ways of earthing, such as one-point earthing, multi-point earthing, series earthing, and parallel earthing should be employed in accordance with diverse circuits.
一点接地，多点接地，串联接地，并联接地等。电路不同而采用不同的接地方法。
The article analyzes the frequency characteristics of RC series parallel circuits and the symmetrical circuits, through studying the effectiveness of the positive-negative feedback to the amplifier.
从正、负反馈对放大器性能影响出发，分析RC串、并联电路及其对偶电路的频率特性。
The article analyzes the frequency characteristics of RC series parallel circuits and the symmetrical circuits, through studying the effectiveness of the positive-negative feedback to the amplifier.
从正、负反馈对放大器性能影响出发，分析RC串、并联电路及其对偶电路的频率特性。
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