source strength: 21 phrases in 14 subjects |
Aerodynamics | 1 |
Aerohydrodynamics | 2 |
Construction | 3 |
Electronics | 3 |
Energy industry | 1 |
Firefighting and fire-control systems | 1 |
General | 1 |
Makarov | 2 |
Mathematics | 1 |
Medical | 1 |
Metrology | 1 |
Technology | 1 |
Telecommunications | 1 |
Радиоактивное излучение | 2 |