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триплекс : 30 phrases in 18 subjects |
| Automobiles | 2 |
| Biochemistry | 1 |
| Drilling | 2 |
| General | 1 |
| Librarianship | 1 |
| Loading equipment | 1 |
| Makarov | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 4 |
| Military | 1 |
| Molecular biology | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Oilfields | 1 |
| Polygraphy | 1 |
| Polymers | 3 |
| Technology | 5 |
| Transport | 1 |