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1·This article concludes the test result of the internal puddler about injecting the bituminous and anthracite mixed coal.

本文归纳了国内炼铁工作者关于高炉喷吹烟无混合煤的试验结果。

2·This article concludes the test result and production experience of the internal puddler aboutinjecting the bituminous and anthracite mixed coal.

本文归纳了国内炼铁工作者关于高炉喷吹烟无混合煤的试验结果和生产经验。