exogenous inclusions(【技】从冶炼到钢水浇注过程中进人钢水中的耐火材料、熔渣等外来物构成的夹杂物。主要特点是外形不规则、尺寸比较大、分布不均匀。: Slag carryover from the BOF into the ladle is a potential source of exogenous inclusion material. 氧气顶吹转炉下渣到钢包是外来夹渣物的一种潜在来源。)
external fuel(During steelmaking by Bessemer converter no external fuel was applied and the whole of the heat requirement was furnished by the oxidation of the impurities, together with that of some of the metallic iron. 贝塞麦转炉炼钢期间，无需添加外来燃料，所需的全部热量均由杂质和部分金属铁的氧化热提供。)
