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| резкая граница (Beneath the crust, seismic waves increase abruptly indicating a sharp boundary between the crust and upper mantle. ArcticFox) | |||
| резкая граница | |||
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sharp-boundary : 5 phrases, 4 sujets |
| Extraction d'or | 2 |
| Makarov | 1 |
| Physique | 1 |
| Ressources naturelles et conservation de la faune | 1 |