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| механическая система | |||
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système mécanique : 17 phrases in 8 subjects |
| Aviation | 2 |
| Construction | 4 |
| General | 1 |
| Mathematics | 1 |
| Mechanic engineering | 3 |
| Physics | 1 |
| Technology | 2 |
| Trucks/Lorries | 3 |
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