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| 可调叶片; 旋转叶片 | |||
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регулируемая лопатка : 12 phrases in 6 subjects |
| Astronautics | 3 |
| Electronics | 2 |
| General | 3 |
| Jet engines | 1 |
| Oil processing plants | 1 |
| Technology | 2 |
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