 |
| |||
| utile | |||
| użyteczny: 31 phrases in 12 subjects |
| Accumulators | 2 |
| Economy | 1 |
| Electricity generation | 3 |
| Electronics | 2 |
| Energy industry | 1 |
| Lighting other than cinema | 1 |
| Radio | 8 |
| Radiology | 1 |
| Satellite communications | 1 |
| Telegraphy | 1 |
| Thermal Energy | 4 |
| Vacuum tubes | 6 |
|
| |||
| utile | |||
| użyteczny: 31 phrases in 12 subjects |
| Accumulators | 2 |
| Economy | 1 |
| Electricity generation | 3 |
| Electronics | 2 |
| Energy industry | 1 |
| Lighting other than cinema | 1 |
| Radio | 8 |
| Radiology | 1 |
| Satellite communications | 1 |
| Telegraphy | 1 |
| Thermal Energy | 4 |
| Vacuum tubes | 6 |