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class 4/5 system; combined exchange; combined local/toll system; combined local/transit exchange; combined system |
sistema combinado: 12 Phrasen in 7 Thematiken |
Elektronik | 2 |
Geowissenschaften | 1 |
Industrie | 1 |
Informationstechnik | 1 |
Landwirtschaft | 1 |
Technik | 1 |
Verkehr | 5 |