分光器 : 92 phrases in 15 subjects |
Astronautics | 1 |
Cables and cable production | 2 |
Electronics | 6 |
General | 20 |
Household appliances | 1 |
Lasers | 1 |
Medical | 1 |
Metallurgy | 1 |
Military | 2 |
Oil processing plants | 3 |
Photography | 2 |
Physics | 2 |
Polygraphy | 1 |
Radio | 4 |
Technology | 45 |