 |
|
base maintenance : 51 phrases in 20 subjects |
| Aeronautics | 2 |
| Agriculture | 1 |
| Astronautics | 3 |
| Aviation | 2 |
| Caspian | 3 |
| Economics | 2 |
| Information technology | 1 |
| Logistics | 2 |
| Metallurgy | 1 |
| Military | 18 |
| Nuclear and fusion power | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Production | 1 |
| Programming | 2 |
| Sakhalin S | 1 |
| SAP tech. | 1 |
| Soviet | 2 |
| Space | 2 |
| Technology | 3 |