 |
| |||
| signal monitoring | |||
| контроль уровня сигнала: 4 phrases in 4 subjects |
| Mass media | 1 |
| Security systems | 1 |
| Telecommunications | 1 |
| Transport | 1 |
|
| |||
| signal monitoring | |||
| контроль уровня сигнала: 4 phrases in 4 subjects |
| Mass media | 1 |
| Security systems | 1 |
| Telecommunications | 1 |
| Transport | 1 |