含硼铁精矿在具备条件的情况下是炼铁工业的经济合理的新型添加剂。
It was a new kind of economical and appropriate additive for ironmaking industry.
哈特·维尔的工作已经揭示了北部地区炼铁工业的杰出的规模和技术的精密度。
Hartwell's work has revealed the extraordinary scale and technical sophistication of the iron industry in Northern.
钢铁工业是国民经济的支柱产业，高炉炼铁是钢铁工业的重要组成部分。
Steel industry is the pillar of the national economy and blast furnace is very important for the steel industry.
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