four martin
| basique
| four Martin | |
| met. | hearth furnace; open hearth furnace; open-hearth steel furnace; Siemens Martin open hearth furnace |
| tech. | open-hearth furnace |
| basique | |
| gen. | basal; base |
| agric. | alkaline basic |
| chem. | basic; basic beryllium carbonate |
| comp. | fundamental |
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| hearth furnace; open hearth furnace; open-hearth steel furnace; Siemens Martin open hearth furnace | |||
| open-hearth furnace | |||
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| open-hearth furnace | |||
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four martin : 16 phrases in 2 subjects |
| Metallurgy | 12 |
| Technology | 4 |