 |
| screw- gear: 44 phrases in 16 subjects |
| Armored vehicles | 1 |
| Automated equipment | 3 |
| Automobiles | 4 |
| Aviation | 1 |
| Construction | 8 |
| General | 1 |
| Mechanic engineering | 5 |
| Metallurgy | 4 |
| Military | 2 |
| Nautical | 3 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Shipbuilding | 1 |
| Technology | 6 |
| Transport | 2 |