 |
|
two-way communications : 45 phrases in 19 subjects |
| Acoustics | 1 |
| Astronautics | 2 |
| Aviation | 1 |
| Communications | 2 |
| Computer networks | 3 |
| Computers | 1 |
| Electronics | 1 |
| General | 1 |
| Information technology | 3 |
| Mass media | 1 |
| Military | 3 |
| Nautical | 1 |
| Programming | 3 |
| Sakhalin | 2 |
| Security systems | 2 |
| Space | 5 |
| Technology | 5 |
| Telecommunications | 6 |
| Weapons of mass destruction | 2 |