 |
| |||
| система ключів до шифрів | |||
|
indicator system : 12 phrases in 4 subjects |
| Airports and air traffic control | 2 |
| Aviation | 2 |
| Military | 7 |
| Oil and gas | 1 |
|
| |||
| система ключів до шифрів | |||
|
indicator system : 12 phrases in 4 subjects |
| Airports and air traffic control | 2 |
| Aviation | 2 |
| Military | 7 |
| Oil and gas | 1 |