free drop: 27 phrases in 14 subjects |
Aerohydrodynamics | 2 |
Armored vehicles | 2 |
Automobiles | 1 |
Aviation | 1 |
Construction | 1 |
General | 2 |
Logistics | 1 |
Makarov | 1 |
Military | 10 |
Nanotechnology | 1 |
Oil / petroleum | 1 |
Oil and gas technology | 1 |
Technology | 2 |
Transport | 1 |