 |
| monitor tube: 10 phrases in 7 subjects |
| Astronautics | 1 |
| Electronics | 1 |
| Firefighting and fire-control systems | 1 |
| Medical appliances | 2 |
| Natural resourses and wildlife conservation | 1 |
| Programming | 3 |
| Радиоактивное излучение | 1 |
|
| monitor tube: 10 phrases in 7 subjects |
| Astronautics | 1 |
| Electronics | 1 |
| Firefighting and fire-control systems | 1 |
| Medical appliances | 2 |
| Natural resourses and wildlife conservation | 1 |
| Programming | 3 |
| Радиоактивное излучение | 1 |