high rate of oxygen enrichment
high rate of oxygen enrichment
富氧速率高
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Calculation and plotting methods of BF operation line without coal injection are modified, and calculation formulae of BF operation line with oxygen enrichment and high PCI rate are deduced.
作者对不喷煤时高炉操作线的计算和绘制方法进行修正，推导出富氧大喷煤时高炉操作线的计算公式。
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