 |
| locking nut: 79 phrases in 20 subjects |
| Armored vehicles | 10 |
| Automated equipment | 3 |
| Automobiles | 6 |
| Communications | 1 |
| Construction | 5 |
| General | 4 |
| Mechanic engineering | 4 |
| Mechanics | 1 |
| Military | 1 |
| Nautical | 1 |
| Oil / petroleum | 3 |
| Oilfields | 1 |
| Packaging | 1 |
| Polygraphy | 1 |
| Production | 1 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Technology | 20 |
| Transport | 12 |
| Weapons and gunsmithing | 2 |