求翻译：炼焦精煤是钢铁行业不可或缺的。随着钢铁工业的快速发展，以及高炉日趋大型化，对炼焦精煤质、数量需求和要求大幅提高。是什么意思？

Coking coal is essential for the steel industry. With the rapid development of steel industry, and increasingly large-scale blast furnace, the coke fine coal, a substantial increase in the number of needs and requirements.

Coking Fine Coal is indispensable for iron and steel industry. With rapid development in the steel industry, as well as increasingly large-scale blast furnace of coking fine coal quality, quantity requirements and calls for a substantial increase.

The coking refined coal is the steel and iron profession indispensable.Along with the iron and steel industry fast development, as well as the blast furnace is large scale day by day, to the coking refined coal nature, quantity demand and the request enhances largely.

Coking coal is indispensable for the steel industry. Steel industry rapid development and increasingly large blast furnace, on coking coal quality and quantity demands and requirements significantly improved.

Coking coal is indispensable for the steel industry. With the rapid development of iron and steel industry, as well as the increasingly large blast furnace, demand for coking coal quality, quantity and requirements increase.