知识与财富的链接
本文从煤种、原材料、富氧、风温以及高炉日常操作、顺行等方面，论述了广钢四号高炉提高煤比的措施。
From such aspects as coal, raw material, oxygen enrichment, temperature, as well as operation and smooth working of BF, the article expounds the measures on how to enhance the PLC rate on No.4 BF of GIS.
