 |
| coefficient of friction: 44 phrases in 14 subjects |
| Aerohydrodynamics | 3 |
| Astronautics | 1 |
| Automated equipment | 5 |
| Automobiles | 1 |
| Bridge construction | 1 |
| Construction | 1 |
| Geography | 1 |
| Makarov | 10 |
| Metallurgy | 2 |
| Nautical | 2 |
| Road works | 1 |
| Technology | 14 |
| Transport | 1 |
| Tribology | 1 |