коэффициент пропускания: 60 phrases in 11 subjects |
Analytical chemistry | 2 |
Astronomy | 1 |
Automobiles | 1 |
Cinema equipment | 13 |
Construction | 3 |
Metrology | 2 |
Optics branch of physics | 3 |
Photographical sound recording | 8 |
Projectors | 1 |
Quantum electronics | 10 |
Technology | 16 |