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фрикционный диск : 55 phrases in 14 subjects |
| Armored vehicles | 3 |
| Automated equipment | 3 |
| Automobiles | 11 |
| Aviation | 1 |
| Construction | 1 |
| Electrochemistry | 1 |
| General | 1 |
| Makarov | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oilfields | 1 |
| Technology | 20 |
| Transport | 9 |