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| выпукло-вогнутый | |||
| выпукловогнутый (MichaelBurov) | |||
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convex-concave : 31 phrases in 12 subjects |
| Aerodynamics | 3 |
| Archaeology | 1 |
| Artillery | 1 |
| Astronomy | 1 |
| Construction | 3 |
| Electronics | 3 |
| Geophysics | 1 |
| Makarov | 2 |
| Mathematics | 5 |
| Medical appliances | 2 |
| Space | 2 |
| Technology | 7 |