略語大辞典 [C] 10 LF low frequency 長波. キロメートル波. 低い周波数の電波.low frequency; a radio wave; or kilometer wave; 30-300kHz; 1-10km wavelength; ref. MF(middle frequency), HF(high frequency), VHF(very high frequency), UHF(ultra high frequency); [C]. 丸善「略語大辞典」JLogosID : 11880583