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| propagation du son; transmission du son | |||
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| transmission du son | |||
| propagation de son | |||
| propagation acoustique; propagation du son | |||
| diffusion sonore | |||
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| propagation du son | |||
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Sound propagation : 10 phrases in 7 subjects |
| Astronomy | 1 |
| Earth sciences | 2 |
| Electronics | 2 |
| Health care | 2 |
| Natural resourses and wildlife conservation | 1 |
| Physical sciences | 1 |
| Scientific | 1 |