 |
|
blocking circuit : 21 phrases in 13 subjects |
| Automated equipment | 1 |
| Construction | 1 |
| Electrical engineering | 2 |
| Electronics | 1 |
| Makarov | 1 |
| Military | 3 |
| Power electronics | 2 |
| Programming | 1 |
| Rail transport | 2 |
| Soviet | 2 |
| Technology | 3 |
| Telecommunications | 1 |
| Transport | 1 |