 |
|
selective control : 32 phrases in 14 subjects |
| Air defense | 1 |
| Automated equipment | 3 |
| Business | 1 |
| Economics | 3 |
| Energy industry | 1 |
| Finances | 1 |
| Information technology | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Politics | 1 |
| Programming | 11 |
| Rail transport | 4 |
| Space | 1 |
| Telecommunications | 2 |