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| section normale de la crémaillère (зубчатой рейки Александр Рыжов) | |||
| section normale | |||
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нормальное сечение : 11 phrases in 5 subjects |
| Gear train | 3 |
| Hydraulic engineering | 2 |
| Mechanic engineering | 3 |
| Mining | 1 |
| Surveying | 2 |
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