Yahoo奇摩字典 網頁搜尋

  1. frequency

    • IPA[ˈfrēkwənsē]

    美式

    • n.
      the rate at which something occurs or is repeated over a particular period of time or in a given sample;the fact of being frequent or happening often.
    • noun: frequency, plural noun: frequencies

    • 釋義
    • 相關詞
    • n.
      名詞
    • 1. the rate at which something occurs or is repeated over a particular period of time or in a given sample:

      shops have closed with increasing frequency during the period

    • 2. the fact of being frequent or happening often.
    • 3. the ratio of the number of actual to possible occurrences of an event.
    • 4. the (relative) number of times something occurs in a given sample.
    • 5. the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second.
    • 6. the particular waveband at which a radio station or other system broadcasts or transmits signals.
    • n. the dependence on signal frequency of the output–input ratio of an amplifier or other device.

    Powered by Oxford Dictionary of English 3e

    • n. the number of beats per second, equal to the difference in the frequencies of two interacting tones or oscillations:

    • amplitude modulated beat frequency

      a beat frequency oscillator

    Powered by Oxford Dictionary of English 3e

    • n. the modulation of a radio or other wave by variation of its frequency, especially to carry an audio signal.

    Powered by New Oxford American Dictionary

    • n. the frequency at which a system oscillates when not subjected to a continuous or repeated external force.

    Powered by New Oxford American Dictionary

    • n. a radio frequency between 300 kHz and 3 MHz.

    Powered by Oxford Dictionary of English 3e

    • n. a range of frequencies in a spectrum between two limits, especially as used in telecommunications:

    • other devices may operate in a similar frequency band

    Powered by Oxford Dictionary of English 3e

    • n. a frequency in the range used for video signals in television.

    Powered by Oxford Dictionary of English 3e

    • n. the ratio of a particular allele to the total of all other alleles of the same gene in a given population.

    Powered by New Oxford American Dictionary

    • 1
    • 2
    • 3
    • 4
    • 5
    • 下一頁
    • 更多解釋
    • IPA[ˈfriːkw(ə)nsi]

    英式

    • n.
      the rate at which something occurs over a particular period of time or in a given sample:
    • an increase in the frequency of accidents due to increased overtime

    Powered by Oxford Dictionary of English 3e

  2. 知識+

    • 英文的adverbs of frequency怎麽use

      Yuliana ,是這樣的: 由frequency最高到frequency最低: ● always ● usually ● often ● sometimes.../adjectives_adverbs/adverbs_of_frequency.htm?page=/en/exercises/adverbs_of_frequency.htm...

    • food-frequency /hypothesis

      food-frequency /hypothesis 這種假設法用在調查一般民眾常吃的食物類別 進而分析食物當中所包含的營養成分 食物頻率假設分析法 或者 日常飲食假設分析法 相關研究報告: http://www.trahc.org.tw/rda/download/91/DOH91-TD-1019.htm

    • 求英文造句~express frequency

      6.有時,間或 It is sometimes warm and sometimes cold. 天時熱時冷。 7.1. 主要地 The lemon drink was for the most part of water. 那檸檬飲料多半成分是水。 2. 大多數情況下 His designs, for the most part, corresponded with the actual...