polar current
| generator
| polar current | |
| tech. | Doppelstrom |
| generator | |
| gen. | Dynamo; Generator; Stromerzeuger |
| AI. | Erzeuger |
| refrig. | Austreiber; Desorber; Kocher |
| tech. | Dynamomaschine; Geber |
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| Doppelstrom m | |||
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polar current : 2 phrases in 2 subjects |
| Communications | 1 |
| Electronics | 1 |