symmetrical circuit的用法和樣例：
例句
- In case of the discharge lamps some triphase symmetrical circuit and varied unsymmetrical circuit are studied.
本文分析了大量採用氣體放電燈照明時，三相對稱電路和多種典型的不對稱電路。 - The radiated emissions from a symmetrical and an asymmetrical PCB layout were evaluated.Some results and layout regulations were presented.
文中對上述方法進行了分析，在此基礎上通過一個對稱電路和一個非對稱電路的輻射場計算，提出了一些工程設計中減小輻射的設計準則。
