hollow cathode discharge

例句：

1. 1. Hollow cathode discharge is a type of electric discharge that occurs in vacuum tubes.
   空心阴极放电是一种在真空管中发生的电放电类型。
2. 2.In the hollow cathode discharge tube, electrons are accelerated by an electric field.
   在空心阴极放电管中，电子由电场加速。
3. 3.The hollow cathode discharge tube is used to produce high-frequency signals.
   空心阴极放电管用于产生高频信号。