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| direction de propagation des ondes; direction de propagation des vagues | |||
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direction of wave propagation : 1 a las frases, 1 temas |
| Tecnología | 1 |
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| direction de propagation des ondes; direction de propagation des vagues | |||
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direction of wave propagation : 1 a las frases, 1 temas |
| Tecnología | 1 |