![]() |
| |||
Empfangsseite des Teilnehmersystems einer vollständigen Telefonverbindung |
receiving system : 15 phrases in 7 subjects |
Communications | 1 |
Economy | 1 |
Electronics | 9 |
Mechanic engineering | 1 |
Optics branch of physics | 1 |
Telecommunications | 1 |
Transport | 1 |