 |
| |||
| guarded signals (ssn) | |||
| |||
| guarded signal (ssn) | |||
| защищённые сигналы: 13 phrases in 4 subjects |
| Electronics | 3 |
| Military | 1 |
| Programming | 8 |
| Security systems | 1 |
|
| |||
| guarded signals (ssn) | |||
| |||
| guarded signal (ssn) | |||
| защищённые сигналы: 13 phrases in 4 subjects |
| Electronics | 3 |
| Military | 1 |
| Programming | 8 |
| Security systems | 1 |