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| 辊道炉膛加热炉; 辊底式炉; 辊底式炉 (The ironmaking process utilizes low-cost iron ore fines that are reduced to DRI in a roller hearth furnace using coal as a reductant 这一炼铁法使用了廉价铁矿粉，以煤作为还原剂在辊底式炉中将铁矿粉还原成直接还原铁。) | |||
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| 辐底式炉 | |||
| 辊道窑 | |||
| 辊底式炉 | |||
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roller-hearth furnace : 13 phrases in 2 subjects |
| Metallurgy | 10 |
| Technology | 3 |
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