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| auxiliary source; backup facility; stand-by machine; alternative power source | |||
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source alternative : 13 Phrasen in 7 Thematiken |
| Allgemeine Lexik | 1 |
| Elektronik | 2 |
| Energiewirtschaft | 6 |
| Landwirtschaft | 1 |
| Name der Organisation | 1 |
| Naturwissenschaften | 1 |
| Umwelt | 1 |