low frequency

(abbr 缩写 LF) radio frequency of 30 to 300 kilohertz 低频（无线电波段中30-300千赫范围内的频率）.

love-hate, love-letter, love-making, love-match, love-potion (also love-philtre), love-seat, love-song, love-story, loveless, loveliness, lovelorn, lovely, lover, lovesick, loving, loving-cup, loving-kindness, lovingly, low, Low Church, low season, low tide (also low water), low-born, Low-Churchman, low-class, low-down, low-fat, low-grade, low-key (also low-keyed), low-level language, low-lying, low-paid, low-pitched, low-rise, lowbrow, lower, lower case, Lower Chamber (also Lower House), lower lip, lowermost,