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  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

    名詞

    • 1. the rate at which something occurs or is repeated over a particular period of time or in a given sample an increase in the frequency of accidents due to increased overtime shops have closed with increasing frequency during the period
    • the fact of being frequent or happening often.
    • the ratio of the number of actual to possible occurrences of an event.
    • the (relative) number of times something occurs in a given sample.
    • 2. 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 different thicknesses of glass will absorb different frequencies of sound
    • the particular waveband at which a radio station or other system broadcasts or transmits signals a radio station on a single AM radio frequency a coding sequence to ensure that everyone changes frequency in the correct manner
    • n.
      (in radio) 30–300 kilohertz.

    Oxford American Dictionary

    • n.
      the dependence on signal frequency of the output–input ratio of an amplifier or other device.

    Oxford Dictionary

    • n.
      the minimum rate at which a signal can be sampled without introducing errors, which is twice ...

    Oxford American Dictionary

    • n.
      the frequency of a steadily recurring phenomenon expressed in radians per second. A frequency ...

    Oxford Dictionary

    • n.
      a frequency or band of frequencies in the range 104 to 1011 or 1012 Hz, suitable for use in ...

    Oxford American Dictionary

    • n.
      a frequency of oscillation capable of being perceived by the human ear, generally between 20 ...

    Oxford Dictionary

    • n.
      the number of beats per second, equal to the difference in the frequencies of two interacting ... amplitude modulated beat frequency a beat frequency oscillator

    Oxford Dictionary

    • n.
      (in radio) a frequency of 3–30 megahertz: high-frequency words high-frequency hearing loss

    Oxford Dictionary

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    • 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 shops have closed with increasing frequency during the period

    Oxford Dictionary