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Meaning of ultra low frequency | Babel Free

Noun CEFR C1

Definitions

Ultra Low Frequency, the band of radio waves between 300 hertz and 3000 hertz.

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

ultra pink ultra rich Ultra SCSI ultra shortcut Ultra- ultra-Darwinism

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