常见例句Slag zone of middle and small size ladles, b arrel and bottom of large size ladles. 中小型鋼包渣線，中大型鋼包包壁和包底。Slag zone of middle and small size ladles, bb arrel and bottom of large size ladles. 中小型鋼包渣線，中大型鋼包包壁和包底。 返回 Arrel