(n.) One who, or that which, discharges. Specifically, in
electricity, an instrument for discharging a Leyden jar, or electrical
battery, by making a connection between the two surfaces; a discharging
rod.
整理:彼得
双语例句
On connecting the two surfaces by means of a metallic discharger having a non-conducting handle a spark is obtained. 威廉·亨利·杜利特.世纪发明.