By nanosecond pulse high voltage, a kind of glow-like discharge in air had been formed when insulating dielectric had been added at the discharge space at lognitudinal direction.

• 采用纳秒脉冲放电方式,在放电空间加入纵向绝缘介质,形成纳秒脉冲在空间上扩散的空气类辉光放电形式。