In case of the discharge lamps some triphase symmetrical circuit and varied unsymmetrical circuit are studied. 本文分析了大量采用气体放电灯照明时，三相对称电路和多种典型的不对称电路。
The radiated emissions from a symmetrical and an asymmetrical PCB layout were evaluated.Some results and layout regulations were presented. 文中对上述方法进行了分析，在此基础上通过一个对称电路和一个非对称电路的辐射场计算，提出了一些工程设计中减小辐射的设计准则。
