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| izolacja urządzenia | |||
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| izolacja kabla lub przewodu | |||
| изолација: 50 phrases in 9 subjects |
| Cables and cable production | 12 |
| Economy | 3 |
| Electric machinery | 4 |
| Electric motors | 18 |
| Electrical engineering | 1 |
| Electricity generation | 4 |
| Isolation | 1 |
| Thermal Energy | 2 |
| Transformers | 5 |