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switching -off : 33 phrases in 14 subjects |
Agriculture | 3 |
Communications | 1 |
Computer numerical control | 1 |
Computers | 1 |
Earth sciences | 4 |
Electric machinery | 2 |
Electronics | 11 |
General | 2 |
Magnetics | 1 |
Mechanic engineering | 2 |
Power electronics | 1 |
Rail transport | 2 |
Technology | 1 |
Transport | 1 |