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switching board : 29 phrases in 13 subjects |
| Automated equipment | 1 |
| Electrical engineering | 1 |
| Electronics | 3 |
| Information technology | 2 |
| Mass media | 1 |
| Measuring instruments | 2 |
| Military | 1 |
| Programming | 1 |
| Rail transport | 8 |
| Shipbuilding | 2 |
| Technology | 2 |
| Telecommunications | 4 |
| Transport | 1 |