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surface profile : 26 phrases in 13 subjects |
| Automated equipment | 6 |
| Automobiles | 1 |
| Construction | 1 |
| Electronics | 1 |
| Hydraulic engineering | 1 |
| Hydrology | 1 |
| Makarov | 4 |
| Mathematics | 1 |
| Mechanics | 1 |
| Oil and gas | 1 |
| Paint, varnish and lacquer | 1 |
| Technology | 5 |
| Tribology | 2 |