 |
| friction clutch: 84 phrases in 17 subjects |
| Armored vehicles | 1 |
| Automated equipment | 8 |
| Automobiles | 6 |
| Aviation | 1 |
| Electrical engineering | 3 |
| Electronics | 1 |
| General | 1 |
| Machinery and mechanisms | 1 |
| Mechanic engineering | 16 |
| Military | 1 |
| Mining | 1 |
| Oil and gas technology | 5 |
| Oilfields | 2 |
| Shipbuilding | 1 |
| Technology | 16 |
| Textile industry | 2 |
| Transport | 18 |