 |
|
design factor : 43 phrases in 17 subjects |
| Aviation | 3 |
| Cement | 2 |
| Construction | 8 |
| Electrical engineering | 1 |
| Electronics | 4 |
| Energy industry | 2 |
| Makarov | 1 |
| Mathematics | 2 |
| Military | 2 |
| Oil / petroleum | 2 |
| Oilfields | 1 |
| Refrigeration | 1 |
| Sakhalin | 3 |
| Sakhalin A | 2 |
| Seismology | 2 |
| Technology | 6 |
| Weapons and gunsmithing | 1 |