design factor: 39 phrases in 17 subjects |
Aviation | 1 |
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 | 4 |
Weapons and gunsmithing | 1 |