词汇 | carbon-dioxide |
释义 | carbon dioxide noun[ U ] uk /ˌkɑː.bən daɪˈɒk.saɪd/ us /ˌkɑːr.bən daɪˈɑːk.saɪd/(symbolCO2) B2 the gas formed when carbon is burned, or when people or animals breathe out: 二氧化碳 carbon dioxide emissions二氧化碳排放 Plants absorb carbon dioxide during photosynthesis. A molecule of carbon dioxide (CO2) has one carbon atom and two oxygen atoms.二氧化碳(CO2)分子是由一个碳原子和两个氧原子构成的。 Microbes decompose organic waste into a mixture of methane and carbon dioxide.微生物把有机废物分解为一种甲烷和二氧化碳的混合物。 The increased use of natural gas will help reduce carbon dioxide emissions. There has been a sudden and worrying rise in the level of carbon dioxide in the atmosphere. Chemicals, chemical compounds & gases acetic acid acrolein acrylamide activated charcoal adenine agglomerate cyanide ethyl alcohol glyphosate H2O HCFC HFC hyaluronic acid hydrochloric acid laughing gas limescale meths oxyacetylene prussic acid tartaric acid carbon dioxide | American Dictionarycarbon dioxide noun[ U ] us/ˈkɑr·bən dɑɪˈɑk·sɑɪd/ biology the gas produced when animal or vegetable matter is burned, or when animals breathe out carbon dioxide | Business Englishcarbon dioxide noun[ U ] ukus(alsocarbon); (abbreviationCO2) ENVIRONMENT the gas formed when carbon is burned, or when people or animals breathe out. Carbon dioxide is a greenhouse gas: The UK plans to reduce carbon dioxide emissions by 60% by 2050. Hotter days could be ahead as the carbon dioxide levels in Earth's atmosphere continue to rise. emit/release carbon dioxideHuman energy consumption releases carbon dioxide into the atmosphere. absorb/capture carbon dioxide Comparecarbon monoxide Examples of carbon dioxidecarbon dioxide The natural permeability of cellular membranes appears to be important for the survival of the arthropod under low oxygen or high carbondioxide atmospheres. This provides flexibility to measure soils with recent manure or compost additions without overwhelming the system with carbondioxide. The nature of this greenhouse effect is disputed - the relative roles of sulphur dioxide and carbondioxide in the greenhouse are strongly debated. The lung was inflated to higher mean volumes without having to use high peak airway pressures to maintain ventilation (oxygenation and carbondioxide removal). It makes nutrients available for growth of primary producers and it releases carbondioxide to the atmosphere. Paralysis would also affect the respiratory system leading to elevated breathing rates and an increase in carbondioxide expiration. Implications of rising atmospheric carbondioxide concentration for rangelands. The methane-oxidizing bacteria, which are able to reduce up to 70 % of the formed methane to carbondioxide, conclude the methane cycle. Reduced oxygen and elevated carbondioxide atmospheres can have an additive effect in some cases, depending on the concentrations used. It is important to note that carbon market payments are generally based on tons of carbondioxide equivalents. Preliminary results on the chemical processing of neat carbondioxide ices, carbondioxide-ethylene mixtures, and of carbon monoxidemethane ices are also presented. End + tidal carbondioxide for monitoring primary closure of gastroschisis. When required, carbondioxide was released (2 1 min"1) from a position e l m upwind of the target. Most species can even live completely lithoautotroph, without any organic substances, only with hydrogen and carbondioxide. Most of these organisms are anaerobes which use inorganic redox reactions of molecular hydrogen, carbondioxide, iron-, nitrogen-, or sulfur compounds as energy sources. See all examples of carbon dioxide 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. |
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