 |
| frottement: 329 phrases in 35 subjects |
| Agriculture | 1 |
| Astronomy | 2 |
| Automated equipment | 1 |
| Chemistry | 7 |
| Coal | 5 |
| Construction | 31 |
| Cultural studies | 2 |
| Earth sciences | 37 |
| Electric traction | 2 |
| Electronics | 5 |
| Environment | 2 |
| Forestry | 1 |
| Gear train | 1 |
| General | 9 |
| Industry | 11 |
| Information technology | 2 |
| Life sciences | 6 |
| Materials science | 9 |
| Measuring instruments | 4 |
| Mechanic engineering | 13 |
| Mechanics | 1 |
| Medical | 25 |
| Medical appliances | 1 |
| Metallurgy | 52 |
| Municipal planning | 1 |
| Natural resourses and wildlife conservation | 6 |
| Natural sciences | 4 |
| Packaging | 5 |
| Paragliding | 1 |
| Physical sciences | 4 |
| Physics | 2 |
| Statistics | 1 |
| Technology | 4 |
| Textile industry | 30 |
| Transport | 41 |