pin-type of return electrode(直流电弧炉的一种炉底电极: The pin-type of return electrode uses multiple metal pins of 2.5 ~ 5. 0 cm in diameter to provide the return path for the electrical flow. 触针式回路电极使用多根直径为2.5 ~ 5.0 cm 的金属触针,为电流提供回路。)
pin return electrode(直流电弧炉的一种炉底电极: Several different designs exist for the bottom return electrode of a direct current electric arc furnace including metal pin return electrodes, billet electrode, metal fin electrodes, and conductive bottom refractory. 直流电弧炉炉底回路电极有几种不同的结构,其中包括金属触针式回路电极、钢棒式电极、金属叶片式电极以及导电耐火材料炉底。)