 |
| |||
| carrier-current line system | |||
| carrier system | |||
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Traegerfrequenzsystem : 5 do fraz, 2 tematyki |
| Komunikacja | 1 |
| Technika i technologia | 4 |
|
| |||
| carrier-current line system | |||
| carrier system | |||
|
Traegerfrequenzsystem : 5 do fraz, 2 tematyki |
| Komunikacja | 1 |
| Technika i technologia | 4 |