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单词 concentration
释义
concentration
noun
uk
/ˌkɒn.sənˈtreɪ.ʃən/us
/ˌkɑːn.sənˈtreɪ.ʃən/

concentrationnoun(ATTENTION)

B2[U]
theabilitytothinkcarefullyabout something you are doing and nothingelse:
专注，专心
Thenoiseoutsidemade concentrationdifficult.外面吵得我难以集中注意力。
There was alookofintenseconcentration on herface.她脸上带着全神贯注的表情。
Ifindthatyogaimprovesmypowersofconcentration.我发现练瑜伽提高了我的注意力。
It was hard tofollowwhat theteacherwas saying, andeventuallyIlostconcentration.我发现自己难以理解老师在讲什么，最后就走神了。
The party's concentrationontaxreductionhaswonthem a lot ofsupport.政府集中推行减税政策，从而赢得了广泛的拥护。
More examples
  • This is a verydifficultpieceofmusictoplay- itdemandsa lot of concentration.
  • Heartsurgeryexactstremendousskilland concentration.
  • Thejobdemandsa highlevelof concentration.
  • Hyperactivechildrenoften havepoorconcentration andrequirevery littlesleep.
  • Even alowlevelofnoiseinterfereswith my concentration.
SMART Vocabulary: related words and phrases
Paying attention and being careful
  • attention span
  • attentiveness
  • be good, and if you can't be good, be carefulidiom
  • be on (your) guardidiom
  • cared-for
  • guard
  • handle/treatsomeonewith kid glovesidiom
  • hang
  • hang on/uponsomething
  • have a careidiom
  • religion
  • revolve
  • revolve aroundsomeone/something
  • safety
  • safety firstidiom
  • see pastsomething
  • sit
  • the/a glare ofsomethingidiom
  • zero
  • Zoom
See more results »

concentrationnoun(AMOUNT)

C2[CorU]
alargenumberoramountof something in the sameplace:
集中；聚集；汇集
There is aheavyconcentrationoftroopsin thearea.该地区有重兵驻扎。
[CorU]chemistryspecialized
theexactamountof oneparticularsubstancethat isfoundin anothersubstance:
浓度
a concentration of onepartpermillion百万分之一的浓度
High concentrationsoftoxicelementswerefoundin thepollutedareas.在被污染地区发现了高浓度的有毒元素。
SMART Vocabulary: related words and phrases
Collecting and amassing
  • accumulate
  • aggregation
  • amass
  • assemble
  • bank
  • bunch
  • compile
  • concentrate
  • cumulate
  • fundraise
  • fundraising
  • garner
  • gather
  • glean
  • harvest
  • rakesomethingup
  • reassemble
  • reconcentrate
  • reconcentration
  • remote sensing
See more results »

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

Physics: the state of matter

concentrationnoun(GAME)

[U]US
(UKpelmanism)
acardgamein whichplayersusetheirmemorytotrytofindpairsofmatchingcards,turningover twocardsat atimefrom a set ofcardsthat arespreadoutface(=pictureside)down
配对纸牌游戏
(Definition ofconcentrationfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

concentration| American Dictionary

concentration
noun
us
/ˌkɑn·sənˈtreɪ·ʃən/

concentrationnoun(COMING TOGETHER)

alargeamountof something in the sameplace:
[C]There’s aheavyconcentration ofpoorandelderlyin thedistrict.

concentrationnoun(GIVING ATTENTION)

[U]
a lot ofattentionandthoughtdirectedto anactivityorsubject:
He had alookofintenseconcentration on hisface.

concentrationnoun(SUBSTANCE)

theamountof asubstancethat ismixedwithwateror anothersubstance
(Definition ofconcentrationfrom theCambridge Academic Content Dictionary© Cambridge University Press)

concentration| Business English

concentration
noun
uk
/ˌkɒnsənˈtreɪʃən/us
[CorU]
thefactof there being alargenumberoramountofpeopleor things of the sametypein the sameplace:
The state'shighestconcentration ofwealthis in themetroareas.
Denverhas one of thebiggestconcentrations oftechworkersin thecountry.
Byidentifyinggeographicalconcentrations ofindustries, we canidentifytrainingneedsthatexistin thoseregions.
[U]
thefactof things beingcombinedinto asinglegroup, orcontrolledby the samepersonororganization:
Thissituationhasresultedin the concentration of theindustryin thehandsof a fewmultinationalcompanies.
[U]
theabilityto give all ofyourattentionto oneparticularactivity,subject, orproblem:
Lowcostsandconcentration oncorebusinessactivitiesformthebasisofoursuccess.
Many of themistakesshe made in thejobweredueto alackof concentration.
See also
buyer concentration
market concentration
(Definition ofconcentrationfrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesofconcentration

concentration
The primary underlying abnormality in this model was inability of neuronal tissue properly to regulate extracellular potassium concentrations.
From theCambridge English Corpus
The tests consist of a control and a minimum of five effluent concentrations.
From theCambridge English Corpus
Data from effluent concentrations that have tested significantly different from the control for survival are excluded from further hypothesis tests concerning growth effects.
From theCambridge English Corpus
In most of the previous studies only values for initial and final concentrations of cholesterol are given.
From theCambridge English Corpus
Changes in ventilator settings were limited to temporary increases in inspired oxygen concentrations to alleviate hypoxemia (pulse oximetry saturation less than 90%).
From theCambridge English Corpus
An upward deviation from ideal was occasionally observed at the lower concentrations, as the detection limit was approached.
From theCambridge English Corpus
We conclude from this experiment that detection down to concentrations of 0.1 ng/ml and partial concentrations of 10 -6is possible using antigen arrays.
From theCambridge English Corpus
Visual examination of the table shows that both black and brown color had notably higher concentrations than either blond-haired or gray-haired subjects.
From theCambridge English Corpus
Ceftriaxone has the additional complication that the protein binding is non-linear, saturating at high concentrations.
From theCambridge English Corpus
After 40 minutes the muscle tissue concentrations for the permeability limited and flow limited cases are not significantly different.
From theCambridge English Corpus
The lower compartment of the wells also contained various concentrations of mactinin and was separated from the upper chamber by a polycarbonate filter.
From theCambridge English Corpus
The flowcytometric analysis using special software allows the calculation of concentrations in the unknown sera.
From theCambridge English Corpus
Sepsis can cause occult adrenal insufficiency in the presence of normal or even elevated serum cortisol concentrations.
From theCambridge English Corpus
The lowest concentrations were found in those dosed at higher levels.
From theCambridge English Corpus
The parallel use of two different concentrations of the same drug is a questionable practice, in particular as they were kept in the same cupboard.
From theCambridge English Corpus
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.

Collocationswithconcentration

concentration

These are words often used in combination withconcentration.

Click on a collocation to see more examples of it.

atmospheric concentration
Seasonal variation inatmosphericconcentrationof fungal spores has been documented for some moulds in several geographical locations.
From theCambridge English Corpus
average concentration
Bars represent theaverageconcentration(in dry weight) for groups of samples taken from fish at different time points after vaccination.
From theCambridge English Corpus
banking concentration
Banking concentration is measured by the fraction of assets held by the three largest commercial banks in each country averaged over the period 1995-1999.
From theCambridge English Corpus
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.
#https://dictionary.cambridge.org//dictionary/english/concentration##
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更新时间：2024/12/28 0:37:48