 |
| |||
| уровень частоты (oleg.vigodsky) | |||
|
frequency level : 18 phrases in 8 subjects |
| Astronautics | 1 |
| Electrical engineering | 1 |
| Electronics | 7 |
| Makarov | 2 |
| Medical appliances | 2 |
| Military | 2 |
| Technology | 1 |
| Telecommunications | 2 |
|
| |||
| уровень частоты (oleg.vigodsky) | |||
|
frequency level : 18 phrases in 8 subjects |
| Astronautics | 1 |
| Electrical engineering | 1 |
| Electronics | 7 |
| Makarov | 2 |
| Medical appliances | 2 |
| Military | 2 |
| Technology | 1 |
| Telecommunications | 2 |