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stop spring : 57 phrases in 19 subjects |
| Armored vehicles | 2 |
| Automated equipment | 2 |
| Automobiles | 9 |
| Aviation | 1 |
| Electrical engineering | 1 |
| Electronics | 2 |
| Mechanic engineering | 5 |
| Mechanics | 2 |
| Military | 4 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Robotics | 4 |
| Roll stock | 1 |
| Space | 1 |
| Technology | 9 |
| Tools | 1 |
| Transport | 4 |
| Weapons and gunsmithing | 6 |