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arc furnace
| roof
| arc furnace | |
| chem. | piec łukowy |
| roof | |
| gen. | dach; daszek |
| build.struct. | pokrycie dachu |
| |||
| piec łukowy | |||
| piec elektryczny łukowy | |||
| arc furnace: 35 phrases in 2 subjects |
| Construction | 2 |
| Thermal Energy | 33 |