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词汇 frequency
释义 frequency
noun
uk /ˈfriː.kwən.si/ us /ˈfriː.kwən.si/

frequencynoun (HAPPENING)


[ C or U ]
the number of times something happens within a particular period, or the fact of something happening often or a large number or times: (事件发生的)频度,次数;频繁
frequency ofComplaints about the frequency of buses rose in the last year.去年对公车发车频率的投诉增长了。
the increasing frequency of terrorist attacks越来越频繁的恐怖袭击
It's not the duration of his absences from work so much as the frequency that worries me.与他的旷工时日相比,他旷工的频繁程度更让我担忧。
SMART Vocabulary: related words and phrases

Frequency & regularity - general words
(as) regular as clockworkidiom
-ly
clockwork
endemically
erratic
erratically
fitful
irregularity
irregularly
like clockworkidiom
many
on and offidiom
on-off
periodic
periodically
prevalence
religiously
statedly
unsynchronized
would

frequencynoun (LIGHT/SOUND/RADIO)


[ U ] physics specialized
the number of times that a wave, especially a light, sound, or radio wave, is produced within a particular period, especially one second: (尤指声波或无线电波每秒振动的)频率
the frequency of light光的频率
low frequency radiation低频辐射
The human ear cannot hear very high-frequency sounds.人耳听不到极高频率的声音。
[ C ] media specialized
a particular number of radio waves produced in a second at which a radio signal is broadcast: 频率(无线电信号的每秒电波数)
Do you know what frequency the BBC World Service is on?你知道英国广播公司的广播频率是多少吗?
SMART Vocabulary: related words and phrases

Physics in general
accelerator
acoustician
acoustics
Archimedes
cathode ray
dynamics
ferromagnetism
fundamental frequency
harmonic
multifrequency
photometry
physical
physicist
physics
post-Einsteinian
quantum mechanics
sine curve
sinusoid
sinusoidal
spectroscopy

You can also find related words, phrases, and synonyms in the topics:


Broadcasting: radio

Grammar



Measurements
We use the nouns length, width, depth and height and the adjectives long, wide, deep and high to talk about area and size: …

Area: length, width, depth and height
We use the nouns length, width, depth and height and the adjectives long, wide, deep and high to talk about area and size: …

Weight and volume
We use the verb weigh to measure weight: …

Frequency, speed, time
We use many different expressions to describe frequency, speed and time. Here are some of them: …

frequency | American Dictionary


frequency
noun
us/ˈfri·kwən·si/
[ C ] physics
the number of times that a wave is produced within a particular period, esp. within one second:
Dogs can hear very high frequencies.

frequencynoun (COMMON)


[ U ]
the number of times something is repeated, or the fact of something happening often:
Houses are sold here with greater frequency than in most other parts of the country.

frequency | Business English


frequency
noun[ C or U ]
uk /ˈfriːkwənsi/us
the number of times something happens within a particular period, or the fact of something happening often or a large number of times:
Once a week is a good frequency to back up all the data.
the frequency of sthCost-conscious retailers are reducing the frequency of cash collections.
We can surely do better in reducing the frequency and intensity of emerging market financial crises.
with greater/increasing frequencySkirmishes between privacy advocates and those collecting information are occurring with increasing frequency.
Some trusts limit the frequency with which a loan can be modified.
COMMUNICATIONS
the number of times that a wave, especially a sound or radio wave, is produced within a particular period, especially one second:
The transmitter sends out a pulse of sound at a frequency of 6 kilohertz.

Examples of frequency


frequency
Thus, at higher frequencies, heating patterns are more spread out and tend to deliver lesser heating than at lower frequencies.
Because gene frequencies are generally presumed to change in phylogeny, then it is suggested that genes must be doing the real work in ontogeny.
We calculate the coverage of a cluster by adding the frequencies of the traces clustered.
To avoid too small expected frequencies, the value codes 2 and 3 were merged for the six extrinsic problems measured at age 13.
Different parents judge the frequencies necessary to fall into such categories very differently.
A chi-squared test was used to compare the frequencies of the responses in different classes.
The frequencies of some of these nouns are generally much lower than those considered in previous studies.
The token frequencies of these were discussed earlier in note 9.
Each distinct form provides a count of one, but the token frequencies for each particular form are ignored.
The relative zero frequencies here may also reflect differences in formality.
The integration is only over the opaque frequencies, ?
A second objection concerns the status of the reported frequencies.
A similar thing could be said for frequencies of valence patterns and the like.
Global sound resonance occurs at multiple frequencies (fundamental and overtones) depending on sound speed (cortico-cortical axons propagation speed) and hall size and shape.
The global theory suggests a tendency for dynamic behavior to exhibit temporal frequencies above the fundamental mode with progressively higher spatial frequencies.
See all examples of frequency
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

Collocations withfrequency


frequency

These are words often used in combination with frequency.

Click on a collocation to see more examples of it.


allele frequency
This is an artefact due to the particular combination of allelefrequency distribution and error model adopted in the simulations.
clock frequency
The machine can, equivalently, be simulated on another concrete machine with identical clock frequency, at the expense of slower performances.
cut-off frequency
Since the plasma has a density gradient along the waveguide width, the cut-offfrequency will vary along the width.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
See all collocations with frequency
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