美[?frikw?nsi] 1 . Their instruments detected very faint radiowaves at a frequency of 3 kilohertz.
他們的儀器檢測到一個3千赫的微弱無線電波。
來自柯林斯例句
2 . Fatal road accidents have decreased in frequency over recent years.
近年來致命交通事故發生率已經下降。
來自《權威詞典》
3 . If we can know their frequency we will monitor their talking.
如果我們知道他們的頻率,我們就能監聽他們的談話.
來自《簡明英漢詞典》
4 . The drug can reduce the frequency and severity of attacks.
這種藥能降低發病次數和嚴重程度.
來自《簡明英漢詞典》
5 . Fatal accidents have decreased in frequency over recent years.
近年來死亡事故發生的頻率已經下降.
來自《簡明英漢詞典》
1.the number of occurrences within a given time period (usually 1 second);
the frequency of modulation was 40 cycles per second
2.the ratio of the number of observations in a statistical category to the total number of observations
3.the number of observations in a given statistical category
