|
two-way system : 22 phrases in 15 subjects |
| Acoustics | 1 |
| Armored vehicles | 2 |
| Communications | 1 |
| Construction | 1 |
| General | 1 |
| Mass media | 1 |
| Military | 1 |
| Programming | 2 |
| Radioengineering | 1 |
| Rail transport | 1 |
| Sakhalin | 1 |
| Seismology | 2 |
| Technology | 3 |
| Telecommunications | 2 |
| Weapons of mass destruction | 2 |