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antena śrubowa; antena helikoidalna | |||
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śmigło n |
helice : 32 phrases in 13 subjects |
Chemistry | 2 |
Construction | 10 |
Electric traction | 2 |
Electricity generation | 1 |
Forestry | 1 |
General | 2 |
Machinery and mechanisms | 1 |
Mechanic engineering | 4 |
Power lines | 1 |
Technology | 2 |
Telegraphy | 1 |
Transport | 4 |
Vacuum tubes | 1 |