 |
| |||
| электронная лампа | |||
| cathode valve: 12 phrases in 4 subjects |
| Electrical engineering | 1 |
| Household appliances | 1 |
| Makarov | 5 |
| Technology | 5 |
|
| |||
| электронная лампа | |||
| cathode valve: 12 phrases in 4 subjects |
| Electrical engineering | 1 |
| Household appliances | 1 |
| Makarov | 5 |
| Technology | 5 |