production rate(【参】在英文原版炼铁专业文献中，用 production rate 来表达"利用系数"或"高炉利用系数"的频率明显低于 productivity。: An increase in blast furnace production rate from 7.2 to 8.9 tonnes/day/100 cu ft working volume, was obtained during trials with natural gas injection. 在喷吹天然气试验期间，高炉利用系数由 0.072 提高到0.089 t/(d ft³) (吨/天/立方英尺)工作容积。)
furnace availability(Several steel companies have converted to slag splashing in an effort to lower refractory replacement costs and increase furnace availability by reducing the delays associated with furnace refractory relines. 一些钢铁公司转而采用溅渣护炉技术，努力降低耐火材料更换费用，通过降低炉子更换耐火衬耽搁的时间提高炉子的作业率。)
sinter strand productivity(The sinter strand productivity increased from 20. 8t / m²/ day to 25.7 t / m²/ day in three years of operation. 在三年运行期间，烧结机利用系数由20. 8t/m² • d 提高到25. 7t/m² • d。)
