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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 a las frases, 4 temas |
| Física | 1 |
| Makárov | 1 |
| Minería de oro | 2 |
| Recursos naturales y conservación de la vida silvestre. | 1 |