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| lav frekvens; lavfrekvens | |||
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| kilometerbølger; LF-båndet | |||
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| grænsefrekvens | |||
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| at sænke frekvensen | |||
| Angielski tezaurus | |||
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| The frequency band between 30 and 300 kHz | |||
| l.f. | |||
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| LF | |||
| LF (30-300KHz) | |||
| LF (30 - 300 kHz) | |||
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lower frequency : 44 do fraz, 11 tematyki |
| Bankowość | 1 |
| Elektronika | 8 |
| Hutnictwo | 1 |
| Inżynieria mechaniczna | 2 |
| Komunikacja | 23 |
| Medycyna | 3 |
| Nauka o ziemi | 1 |
| Ochrona środowiska | 1 |
| Pospolicie | 1 |
| Technika i technologia | 2 |
| Technologia informacyjna | 1 |