求翻译：摘 要：本文介绍了柳钢高炉喷吹高挥发份烟煤的生产实践，指出了喷煤系统存在的缺陷及改进措施，总结了高炉喷吹高挥发份烟煤所采取的安全措施。是什么意思？

Abstract: This paper describes the Liuzhou Steel blast furnace production of high-volatile bituminous coal practice, pointed out the defects and pulverized coal injection system improvements, summed up the blast furnace of the high volatile bituminous coal safety measures.

Summary: This article describes Yoo steel furnace spray high-volatile bituminous coal in coal production practice spray system, pointed out the shortcomings and improvements, summing up the blast furnaces spray high volatile bituminous the security measures taken.

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Abstract: this paper introduced the liuzhou iron and blast furnace production practice of high volatile bituminous coal, pointing out shortcomings of pulverized coal injection system and improvement measure, summed up the blast safety measures taken by the high volatile bituminous coal.

Abstract: This paper describes the Liuzhou Steel blast furnace production of high-volatile bituminous coal practice, pointed out the defects and pulverized coal injection system improvements, summed up the blast furnace of the high volatile bituminous coal safety measures.