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пороговый шум |
threshold noise: 21 phrases in 11 subjects |
Acoustics | 2 |
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 |