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| blast furnace A tall, cylindrical smelting furnace for reducing iron ore to pig iron; the blast of air blown through solid fuel increases the combustion rate; blast furnace | |||
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| blast furnace | |||
| blast-furnace | |||
| draft furnace | |||
| altos hornos: 49 phrases in 9 subjects |
| Chemistry | 3 |
| Coal | 2 |
| Energy industry | 1 |
| Environment | 2 |
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| Metallurgy | 24 |
| Technology | 1 |