Hot metal silicon content in blast furnace is a main parameter by which product quality is measured and energy utilization ratio of blast furnace is reflected.

高炉铁水中的矽含量不仅是衡量产品质量的一个重要指标，而且反映了高炉能量利用的好坏。

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For hot metal desulphurization by powder injection, mixing time, residence time and powder penetration ratio are the three basic parameters which determine desulphurization efficiency in ladle.

熔池均混时间、粉剂穿透比和粉剂停留时间是决定铁水包喷粉脱硫效率的三个基本参数。

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The structure optimization is ultimate approach to decreasing are and hot metal to steel ratio and energy consumption per ton crude steel.

钢铁工业结构优化是降低钢比系数，进而降低吨钢能耗的根本途径。

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