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| soutènement de la voûte (туннеля); étalement de la voûte | |||
| blindage de voûte (туннельной выработки); soutènement du la voûte | |||
| soutènement de la voûte; étayement de la voûte | |||
| крепление свода: 6 phrases in 3 subjects |
| Construction | 1 |
| Mining | 3 |
| Technology | 2 |
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