 |
|
control boundaries : 54 phrases in 15 subjects |
| Aerohydrodynamics | 16 |
| Aeronautics | 1 |
| Air defense | 1 |
| Astronautics | 3 |
| Automobiles | 1 |
| Aviation | 10 |
| Construction | 1 |
| Energy industry | 1 |
| Information technology | 1 |
| Military | 2 |
| Nautical | 4 |
| Soviet | 1 |
| Space | 9 |
| Technology | 2 |
| Transport | 1 |