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

concentrationnoun (ATTENTION)


B2[ U ]
the ability to think carefully about something you are doing and nothing else: 专注,专心
The noise outside made concentration difficult.外面吵得我难以集中注意力。
There was a look of intense concentration on her face.她脸上带着全神贯注的表情。
I find that yoga improves my powers of concentration.我发现练瑜伽提高了我的注意力。
It was hard to follow what the teacher was saying, and eventually I lost concentration.我发现自己难以理解老师在讲什么,最后就走神了。
The party's concentration on tax reduction has won them a lot of support.政府集中推行减税政策,从而赢得了广泛的拥护。
This is a very difficult piece of music to play - it demands a lot of concentration.这段乐曲很难演奏——需要注意力高度集中。
Heart surgery exacts tremendous skill and concentration.心脏外科手术要求手术者技术高超且精神高度集中。
The job demands a high level of concentration.这项工作需要精神高度集中。
Hyperactive children often have poor concentration and require very little sleep.多动的孩子经常注意力不够集中而且睡觉很少。
Even a low level of noise interferes with my concentration.甚至很低的噪声也会分散我的注意力。
SMART Vocabulary: related words and phrases

Paying attention and being careful
attention span
attentiveness
baby
be good, and if you can't be good, be carefulidiom
be on (your) guardidiom
egg
flow
follow/steer/take the middle course/way/pathidiom
get religionidiom
guard
hang
hang on/upon something
prudently
religion
revolve
revolve around someone/something
safety
safety firstidiom
sit
the/a glare of somethingidiom

concentrationnoun (AMOUNT)


C2[ C or U ]
a large number or amount of something in the same place: 集中;聚集;汇集
There is a heavy concentration of troops in the area.该地区有重兵驻扎。
[ C or U ] chemistry specialized
the exact amount of one particular substance that is found in another substance: 浓度
a concentration of one part per million百万分之一的浓度
High concentrations of toxic elements were found in the polluted areas.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
agglomerate
aggregation
amass
assemble
bunch
compile
completism
completist
compost
concentrate
cumulate
fundraise
fundraising
harvest
put something together
rake something up
reassemble
reconcentrate
reconcentration

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


Physics: the state of matter

concentrationnoun (GAME)


[ U ]US(UKpelmanism)
a card game in which players use their memory to try to find pairs of matching cards, turning over two cards at a time from a set of cards that are spread out face(= picture side) down 配对纸牌游戏

concentration | American Dictionary


concentration
noun
us/ˌkɑn·sənˈtreɪ·ʃən/

concentrationnoun (COMING TOGETHER)


a large amount of something in the same place:
[ C ]There’s a heavy concentration of poor and elderly in the district.

concentrationnoun (GIVING ATTENTION)


[ U ]
a lot of attention and thought directed to an activity or subject:
He had a look of intense concentration on his face.

concentrationnoun (SUBSTANCE)


the amount of a substance that is mixed with water or another substance

concentration | Business English


concentration
noun
uk /ˌkɒnsənˈtreɪʃən/us
[ C or U ]
the fact of there being a large number or amount of people or things of the same type in the same place:
The state's highest concentration of wealth is in the metro areas.
Denver has one of the biggest concentrations of tech workers in the country.
By identifying geographical concentrations of industries, we can identify training needs that exist in those regions.
[ U ]
the fact of things being combined into a single group, or controlled by the same person or organization:
This situation has resulted in the concentration of the industry in the hands of a few multinational companies.
[ U ]
the ability to give all of your attention to one particular activity, subject, or problem:
Low costs and concentration on core business activities form the basis of our success.
Many of the mistakes she made in the job were due to a lack of concentration.
See also
buyer concentration
market concentration

Examples of concentration


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


concentration

These are words often used in combination with concentration.

Click on a collocation to see more examples of it.


atmospheric concentration
Seasonal variation in atmosphericconcentration of fungal spores has been documented for some moulds in several geographical locations.
average concentration
Bars represent the averageconcentration (in dry weight) for groups of samples taken from fish at different time points after vaccination.
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.
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 concentration
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