звукового давления : 40 phrases in 12 subjects |
Aerodynamics | 2 |
Artillery | 1 |
Automated equipment | 1 |
Aviation | 9 |
Cinema equipment | 3 |
Construction | 1 |
Electronics | 13 |
Hygiene | 1 |
Medical appliances | 3 |
Natural resourses and wildlife conservation | 1 |
Oceanography & oceanology | 1 |
Technology | 4 |