bell crank: 37 phrases in 17 subjects |
Aeronautics | 1 |
Astronautics | 2 |
Automated equipment | 1 |
Automobiles | 1 |
Aviation | 1 |
Geology | 1 |
Makarov | 2 |
Mechanic engineering | 7 |
Military | 1 |
Mining | 1 |
Nautical | 3 |
Polygraphy | 2 |
Rail transport | 4 |
Shipbuilding | 1 |
Technology | 3 |
Transport | 4 |
Weapons and gunsmithing | 2 |