 |
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| media frequenza; medie frequenze; onde ettometriche | |||
| frequenza media | |||
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| frequenza media in elettrotermia | |||
| Angielski tezaurus | |||
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| MF (300 KHz - 3 MHz) | |||
| MF (300-3000KHz) | |||
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medium-frequency : 7 do fraz, 4 tematyki |
| Elektronika | 1 |
| Hutnictwo | 2 |
| Inżynieria mechaniczna | 2 |
| Komunikacja | 2 |