 |
| external power: 58 phrases in 20 subjects |
| Astronautics | 7 |
| Aviation | 13 |
| Caspian | 1 |
| Construction | 4 |
| Diplomacy | 1 |
| Electrical engineering | 3 |
| Electronics | 3 |
| Energy industry | 2 |
| Makarov | 1 |
| Mechanics | 1 |
| Military | 3 |
| Missiles | 1 |
| Nanotechnology | 1 |
| Oilfields | 1 |
| Programming | 6 |
| Sakhalin | 3 |
| Security systems | 1 |
| Seismology | 1 |
| Technology | 4 |
| Turbines | 1 |