 |
| |||
| fala akustyczna swobodna; fala akustyczna bieżąca | |||
| fala bieżąca | |||
|
onde progressive : 4 phrases in 4 subjects |
| Antennas and waveguides | 1 |
| Radio | 1 |
| Thermal Energy | 1 |
| Vacuum tubes | 1 |
|
| |||
| fala akustyczna swobodna; fala akustyczna bieżąca | |||
| fala bieżąca | |||
|
onde progressive : 4 phrases in 4 subjects |
| Antennas and waveguides | 1 |
| Radio | 1 |
| Thermal Energy | 1 |
| Vacuum tubes | 1 |