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单词 carbon dioxide
释义
carbon dioxide
noun[U]
uk
/ˌkɑː.bən daɪˈɒk.saɪd/us
/ˌkɑːr.bən daɪˈɑːk.saɪd/
(symbolCO2)
B2
thegasformedwhencarbonisburned, or whenpeopleoranimalsbreatheout:
二氧化碳
carbondioxideemissions二氧化碳排放
More examples
  • Plantsabsorbcarbondioxideduringphotosynthesis.
  • Amoleculeofcarbondioxide(CO2) has onecarbonatomand twooxygenatoms.
  • Microbesdecomposeorganicwasteinto amixtureofmethaneandcarbondioxide.
  • Theincreaseduse ofnaturalgaswillhelpreducecarbondioxideemissions.
  • There has been asuddenandworryingrisein thelevelofcarbondioxidein theatmosphere.
SMART Vocabulary: related words and phrases
Chemicals, chemical compounds & gases
  • acetic acid
  • acetone
  • acrolein
  • acrylamide
  • adenine
  • aldehyde
  • alkaline earth metal
  • benzoic acid
  • ethyl alcohol
  • fluorocarbon
  • H2O
  • HCFC
  • HFC
  • hyaluronic acid
  • hydrochloric acid
  • hydrochlorofluorocarbon
  • limescale
  • metho
  • tartaric acid
  • tear gas
See more results »
(Definition ofcarbon dioxidefrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

carbon dioxide| American Dictionary

carbon dioxide
noun[U]
us/ˈkɑr·bən dɑɪˈɑk·sɑɪd/
biology
thegasproducedwhenanimalorvegetablematterisburned, or whenanimalsbreatheout
(Definition ofcarbon dioxidefrom theCambridge Academic Content Dictionary© Cambridge University Press)

carbon dioxide| Business English

carbon dioxide
noun[U]
uk
us
(alsocarbon);(abbreviationCO2)
ENVIRONMENT
thegasformedwhen carbon isburned, or whenpeopleoranimalsbreatheout. Carbondioxideis agreenhousegas:
The UKplanstoreducecarbondioxideemissionsby 60% by 2050.
Hotterdayscould beaheadas thecarbondioxidelevelsin Earth'satmospherecontinuetorise.
emit/release carbon dioxideHumanenergyconsumptionreleasescarbondioxideinto theatmosphere.
absorb/capturecarbondioxide

Compare

carbon monoxide
(Definition ofcarbon dioxidefrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesofcarbon dioxide

carbon dioxide
The natural permeability of cellular membranes appears to be important for the survival of the arthropod under low oxygen or highcarbondioxideatmospheres.
From theCambridge English Corpus
This provides flexibility to measure soils with recent manure or compost additions without overwhelming the system withcarbondioxide.
From theCambridge English Corpus
The nature of this greenhouse effect is disputed - the relative roles of sulphur dioxide andcarbondioxidein the greenhouse are strongly debated.
From theCambridge English Corpus
The lung was inflated to higher mean volumes without having to use high peak airway pressures to maintain ventilation (oxygenation andcarbondioxideremoval).
From theCambridge English Corpus
It makes nutrients available for growth of primary producers and it releasescarbondioxideto the atmosphere.
From theCambridge English Corpus
Paralysis would also affect the respiratory system leading to elevated breathing rates and an increase incarbondioxideexpiration.
From theCambridge English Corpus
Implications of rising atmosphericcarbondioxideconcentration for rangelands.
From theCambridge English Corpus
The methane-oxidizing bacteria, which are able to reduce up to 70 % of the formed methane tocarbondioxide, conclude the methane cycle.
From theCambridge English Corpus
Reduced oxygen and elevatedcarbondioxideatmospheres can have an additive effect in some cases, depending on the concentrations used.
From theCambridge English Corpus
It is important to note that carbon market payments are generally based on tons ofcarbondioxideequivalents.
From theCambridge English Corpus
Preliminary results on the chemical processing of neatcarbondioxideices,carbondioxide-ethylene mixtures, and of carbon monoxidemethane ices are also presented.
From theCambridge English Corpus
End + tidalcarbondioxidefor monitoring primary closure of gastroschisis.
From theCambridge English Corpus
When required,carbondioxidewas released (2 1 min"1) from a position e l m upwind of the target.
From theCambridge English Corpus
Most species can even live completely lithoautotroph, without any organic substances, only with hydrogen andcarbondioxide.
From theCambridge English Corpus
Most of these organisms are anaerobes which use inorganic redox reactions of molecular hydrogen,carbondioxide, iron-, nitrogen-, or sulfur compounds as energy sources.
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/carbon-dioxide##
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更新时间：2025/2/5 17:41:27