impact velocity: 37 phrases in 19 subjects |
Agrochemistry | 1 |
Armored vehicles | 1 |
Artillery | 3 |
Astronautics | 3 |
Automobiles | 5 |
Aviation | 1 |
Electronics | 1 |
Firefighting and fire-control systems | 1 |
Hydrology | 1 |
Makarov | 1 |
Metallurgy | 1 |
Metrology | 2 |
Military | 2 |
Nanotechnology | 2 |
Nautical | 5 |
Physics | 2 |
Shipbuilding | 2 |
Technology | 2 |
Weapons and gunsmithing | 1 |