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| ambient sound | |||
| environmental noise; ambient noise | |||
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| ambient noise (обычно со звуковым давлением 0,00002 Па) | |||
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| ambient noise | |||
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шум окружающей среды : 10 phrases in 4 subjects |
| Acoustics | 2 |
| Aviation | 2 |
| Electronics | 1 |
| Natural resourses and wildlife conservation | 5 |