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Ultra low frequency
[bn] আলট্রা লো ফ্রিকুয়েন্সি
[ca] Freqüència ultrabaixa
[da] ULF
[es] Frecuencia ultrabaja
[fa] بسامد فراپایین
[fi] ULF (taajuusalue)
[fr] Ultra basse fréquence
[hi] अत्यन्त निम्न आवृत्ति (ULF)
[id] Frekuensi ultra rendah
[it] Ultra low frequency