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switch- board: 33 phrases in 13 subjects |
Electrical engineering | 3 |
Electronics | 4 |
General | 1 |
Information technology | 2 |
Mass media | 1 |
Measuring instruments | 2 |
Military | 1 |
Programming | 2 |
Rail transport | 8 |
Shipbuilding | 2 |
Technology | 2 |
Telecommunications | 4 |
Transport | 1 |