 |
| |||
| reflection of sound; reverberation of sound | |||
| sound reflection | |||
| réflexion du son: 2 phrases in 2 subjects |
| Industry | 1 |
| Natural resourses and wildlife conservation | 1 |
|
| |||
| reflection of sound; reverberation of sound | |||
| sound reflection | |||
| réflexion du son: 2 phrases in 2 subjects |
| Industry | 1 |
| Natural resourses and wildlife conservation | 1 |