audio frequency音频。 a high [low] frequency高[低]频。 the frequency of earthquakes in Japan 地震在日本的频繁发生。 mean [median] frequency中频。 resonance [resonant] frequency谐振频率,共振频率。 ultrahigh frequency超高频。 ultralow frequency超低频。 very high frequency甚高频。 very low frequency甚低频。
the number of observations in a given statistical category 同义词:absolute frequency,
the ratio of the number of observations in a statistical category to the total number of observations 同义词:relative frequency,
the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older" 同义词:frequence, oftenness,
百科解释
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.