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| пороговый шум | |||
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threshold noise : 22 phrases in 11 subjects |
| Acoustics | 3 |
| Aviation medicine | 3 |
| Computers | 1 |
| Electronics | 2 |
| Makarov | 1 |
| Mass media | 1 |
| Medical | 4 |
| Natural resourses and wildlife conservation | 1 |
| Occupational health & safety | 2 |
| Technology | 3 |
| Telecommunications | 1 |