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| свободная поверхность | |||
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| свободная поверхность | |||
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自由 面 : 45 phrases in 13 subjects |
| Aerodynamics | 3 |
| Construction | 2 |
| Electronics | 4 |
| General | 11 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Name of organization | 1 |
| Nautical | 5 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Shipbuilding | 2 |
| Technology | 12 |
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