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| lutte contre le bruit | |||
| lutte contre les bruits; suppression de bruits parasites | |||
| борьба с шумом: 10 phrases in 6 subjects |
| Aviation | 1 |
| Environment | 1 |
| General | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 5 |
| Technology | 1 |
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