shock front: 42 phrases in 18 subjects |
Aerodynamics | 2 |
Aerohydrodynamics | 9 |
Astronautics | 3 |
Aviation | 2 |
Electronics | 1 |
Energy industry | 1 |
Makarov | 1 |
Mass media | 2 |
Mathematics | 1 |
Mechanics | 3 |
Metallurgy | 1 |
Military | 5 |
Nuclear physics | 1 |
Physics | 1 |
Technology | 2 |
Thermal engineering | 1 |
Transport | 4 |
Weapons of mass destruction | 2 |