 |
| |||
| station alarm (ssn) | |||
| office alarm (oleg.vigodsky) | |||
| станционный аварийный сигнал: 6 phrases in 2 subjects |
| Measuring instruments | 3 |
| Telecommunications | 3 |
|
| |||
| station alarm (ssn) | |||
| office alarm (oleg.vigodsky) | |||
| станционный аварийный сигнал: 6 phrases in 2 subjects |
| Measuring instruments | 3 |
| Telecommunications | 3 |