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friccion : 248 phrases in 24 subjects |
| Agriculture | 1 |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Chemistry | 8 |
| Coal | 2 |
| Earth sciences | 14 |
| Electric traction | 1 |
| Electronics | 4 |
| Forestry | 1 |
| General | 14 |
| Industry | 48 |
| Information technology | 3 |
| Life sciences | 5 |
| Materials science | 13 |
| Mechanic engineering | 38 |
| Medical | 5 |
| Metallurgy | 12 |
| Natural sciences | 1 |
| Packaging | 13 |
| Physical sciences | 1 |
| Resins | 2 |
| Technology | 15 |
| Textile industry | 19 |
| Transport | 26 |