常見例句This paper describes the study and development of magnesia carbon refractories for DC electric arc furnaces.本文闡述了直流電弧爐用鎂碳質(zhì)耐火材料的研究及發(fā)展。The scrap must be carefully selected to contain exactly the right ingredient before it is sent into the electric furnace.廢鋼在送進電弧爐熔煉前必須先經(jīng)過仔細挑選，以保證其成分完全符合要求。 返回 arc-furnace