 |
| |||
| optical channel protection (oleg.vigodsky); optical protection (oleg.vigodsky) | |||
| резервирование оптических каналов: 7 phrases in 2 subjects |
| Mass media | 1 |
| Telecommunications | 6 |
|
| |||
| optical channel protection (oleg.vigodsky); optical protection (oleg.vigodsky) | |||
| резервирование оптических каналов: 7 phrases in 2 subjects |
| Mass media | 1 |
| Telecommunications | 6 |