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ультразвуковая частота : 33 phrases in 16 subjects |
Automated equipment | 3 |
Aviation | 1 |
Energy industry | 1 |
General | 2 |
Geophysics | 1 |
Mass media | 4 |
Medical | 1 |
Medical appliances | 2 |
Metrology | 4 |
Military | 1 |
Physics | 1 |
Pipelines | 3 |
Quality control and standards | 1 |
Security systems | 1 |
Technology | 6 |
Telecommunications | 1 |