specific electrode consumption(Another advantage of this mode of operation is that a relatively long arc can be employed, resulting in increased energy efficiency and lower specific electrode consumption. 这一操作模式的另一优点是可以使用较长电弧，从而提高了电能效率，降低了电极单耗。)
electrode port(①The center section of the roof which surrounds the electrode ports is called the roof delta and is a cast section of refractory which may be water cooled. 环绕电极孔的炉顶中心区称为炉顶三角区，由耐火材料浇筑而成并可以进行水冷。② In some cases the slag is foamed to such an extent that it comes out of the electrode ports. 有时炉渣起泡甚至溢出电极孔。)
