 |
| |||
| способ возбуждения сигналов | |||
|
transmitting method : 5 phrases in 4 subjects |
| Air defense | 1 |
| Military | 2 |
| Seismology | 1 |
| Technology | 1 |
|
| |||
| способ возбуждения сигналов | |||
|
transmitting method : 5 phrases in 4 subjects |
| Air defense | 1 |
| Military | 2 |
| Seismology | 1 |
| Technology | 1 |