frequency

B2 CET-4 Oxf 3000 大学 FREQ #6549 ★★☆☆☆

n. 频率, 频数 [计] 频率

发音

其它 /ˈfɹiːkwənsi/
IN /friˈkwɛnsi/

词形变化

frequencies 复数 frequencies

别名

fqcy. freq freq. frequence

教材释义与例句

名词

频率；频繁

释义与例句

n. B2 Oxf 3000
  1. 1.

    The rate of occurrence of anything; the relationship between incidence and time period.

    频率

    频度

    次数

    可数 不可数

    With growing confidence, the Viking’s raids increased in frequency.

    The frequency of bus service has been improved from one every 15 to one every 12 minutes.

  2. 2.

    The property of occurring often rather than infrequently.

    常常

    不可数 可数

    The FAQ addresses questions that come up with some frequency.

    The frequency of the visits was what annoyed him.

  3. 3.

    The quotient of the number of times n a periodic phenomenon occurs over the time t in which it occurs: f=n/t.

    频数

    可数 不可数

    The frequency of the musical note A above middle C is 440 oscillations per second.

    The frequency of a wave is its velocity v divided by its wavelength #92;lambda: f#61;v#47;#92;lambda.

    Broadcasting live at a frequency of 98.3 megahertz, we’re your rock alternative!

    The frequency for electric power in the Americas is generally 60 Hz rather than 50.

  4. 4.

    A tone, character, mood, or vibe

    可数 不可数
  5. 5.

    number of times an event occurred in an experiment (absolute frequency)

    可数 不可数 数学
  6. 6.

    range of electromagnetic waves used for wireless communication in devices like radios, TVs and mobile phones

    可数 不可数 媒体 工程

词汇关系

名词

同义词 4

absolute frequency frequence oftenness relative frequency

上位词 4

rate cardinal ratio cardinal number

下位词 7

audio attendance infrared incidence audio frequency radio frequency wavenumber

相关短语

frequency channel [计] 频道 frequency modulation 调频 frequency multiplier [计] 倍频器 frequency assignment [计] 频率分配 frequency multipliers frequency shift keying [计] 频移调制; 频移键控 frequency modulations frequency channels frequency assignments frequency distribution [化] 频数分布 [经] 频率分布 frequency list frequency lists frequency distributions frequency domain [化] 频域 frequency domains

词源

From Latin frequentia, from frequens. By surface analysis, frequent + -cy.

来源：wiktionary