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| coal-oxygen smelting reduction ironmaking process (【技】由中国多家科研院所、大学和企业协作研究开发的熔融还原工艺，它是以含碳球团为原料的独具特点的低二次燃烧率、中等预还原度的二步法熔融还原技术。) | |||
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煤-氧熔融还 原 炼铁法 : 2 phrases in 1 subject |
| Metallurgy | 2 |
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