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giętki : 16 phrases in 8 subjects |
| Antennas and waveguides | 1 |
| Cables and cable production | 2 |
| Earth sciences | 2 |
| Electrical engineering | 4 |
| Electricity generation | 1 |
| Printed circuit boards | 4 |
| Thermal Energy | 1 |
| Vacuum tubes | 1 |
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