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Lüftung : 57 phrases in 13 subjects |
Chemistry | 1 |
Construction | 21 |
Electric traction | 1 |
Electronics | 1 |
General | 2 |
Labor law | 16 |
Mechanic engineering | 2 |
Municipal planning | 4 |
Natural resourses and wildlife conservation | 2 |
Nuclear physics | 1 |
Patents | 2 |
Technology | 2 |
Transport | 2 |