 |
|
approach-path : 51 phrases in 15 subjects |
| Airports and air traffic control | 2 |
| Astronautics | 6 |
| Aviation | 18 |
| Construction | 1 |
| Fighter aviation | 1 |
| Gear train | 1 |
| Information technology | 3 |
| Makarov | 3 |
| Management | 1 |
| Mass media | 1 |
| Microelectronics | 1 |
| Military | 4 |
| Programming | 1 |
| Space | 1 |
| Technology | 7 |