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| 钢棒式回路电极 (直流电弧炉的一种炉底电极: The billet return electrode configuration employs from one to four large steel billets (on the order of 10 ~ 15cm diameter but can be as large as 25cm diameter) depending on the size of direct current electric arc furnace. 根据直流电弧炉的吨位，钢棒式电极装置可以配置 1 至4根大型钢棒(直径约为10 ~ 15cm, 有时直径可达 25cm)。) | |||