词汇 | chemical |
释义 | chemical noun[ C ] uk /ˈkem.ɪ.kəl/ us /ˈkem.ɪ.kəl/ B2 any basic substance that is used in or produced by a reaction involving changes to atoms or molecules: 化学品;化学制品 The government has pledged to reduce the amount of chemicals used in food production.政府承诺减少食品生产中化学制品的用量。 Each year, factories release millions of tons of toxic(= poisonous) chemicals into the atmosphere.每年,工厂将数百万吨的有毒化学物品排放到大气中。 They use special chemicals to accelerate the growth of crops.他们使用特殊的化学品来刺激农作物生长。 Organic chemicals are used in the manufacture of plastics, fibres, solvents and paints.有机化学物用于生产塑料、纤维、溶剂和油漆。 The body produces chemicals that are natural painkillers.人体会产生一些化学物质,它们是天然的止痛剂。 Toxic chemicals continue to be dumped in the North Sea. Many chemicals have a damaging effect on the environment.许多化工产品都对环境有害。 Chemistry - general words acceptor aerosol aerosolize allotrope amphiprotic balanced equation chemical equation electrolyte endocrine disruptor endothermic epitaxial epitaxially epitaxy ionic bond latent heat nonchemical nonelectrolyte nonreactive preatomic reactive chemical adjective uk /ˈkem.ɪ.kəl/ us /ˈkem.ɪ.kəl/ B2 relating to chemicals: 化学的;化学制品的 The chemical industry produces such things as petrochemicals, drugs, and rubber.化学工业生产诸如石化产品、药品、橡胶之类的东西。 Sodium chloride is the chemical name for common salt.氯化钠是食盐的化学名称。 All chemical weapons facilities will be deactivated.所有化学武器设施都将进行处理使其失效。 Estimates of the amount of money needed to decontaminate the heavily polluted chemical installations vary.对受重污染的化工设施进行净化预计需要多少资金说法不一。 We had to learn chemical formulae at school, but I can only remember H2O for water. The chemical properties of coal are still incompletely understood.煤的化学性质仍不完全清楚。 Chemistry - general words acceptor aerosol aerosolize allotrope amphiprotic balanced equation chemical equation electrolyte endocrine disruptor endothermic epitaxial epitaxially epitaxy ionic bond latent heat nonchemical nonelectrolyte nonreactive preatomic reactive Related wordchemicallyadverb chemical | American Dictionarychemical noun[ C ] us/ˈkem·ɪ·kəl/ any basic substance that is used in or produced by a reaction involving changes to atoms or molecules: His business manufactured farm chemicals. chemical adjective us/ˈkem·ɪ·kəl/ of, involved with, relating to, or made by using chemicals or chemistry: the chemical industry a chemical plant producing plastics and rubber chemicallyadverbus/ˈkem·ɪk·li/ chemically treated paper chemical | Business Englishchemical noun[ C ] uk /ˈkemɪkəl/us any basic substance which is used in or produced by a reaction involving changes to atoms or molecules: The government has pledged to reduce the amount of chemicals used in food production. Each year, factories release millions of tonnes of toxic chemicals into the atmosphere. chemical adjective uk /ˈkemɪkəl/us relating to chemicals: The chemical industry produces such things as petrochemicals, drugs, paint, and rubber. chemicallyadverb The fund provides money to clean up chemically polluted industrial sites. Examples of chemicalchemical It is especially worth noting that in the market, the price of organic food is at least twice that of food treated with chemicals. Her history of chemical theory refuses to isolate theory from the laboratory, the lecture hall, or the public and its philosophical interests. Any given event may be described by referring to various levels of description, such as the physical, chemical, biological, psychological, and sociological. To induce chemical reactions on these surfaces it is important to consider an energy source. Recent years have seen considerable progress in the development of chemical self-replicating systems. The cost of purpose-built manufacturing facilities and chemical synthesis are a critical barrier to the commercial development of many potential pesticides. No reduction in chemical fertilizer use for potatoes and silage corn was observed and increased crop yields were unlikely. Such a conclusion may have practical implications relating to chemical change in alloys. Chickens' diseases are typically objects of prevention, mainly by mechanical distribution of chemicals throughout the entire flock. However, cattle producers used to controlling tick infestations with chemical acaricides typically treat reactively. The facility is used for different biological, chemical and aerodynamical experiments. However, it is difficult to increase a signal which is specific to a single individual because of chemical mimicry. It was demonstrated that by fixing the chemical potential the average number or concentration can be determined. Many recent studies have demonstrated that astrocytes release chemical transmitters in a process termed gliotransmission. Geochemical observations appear to mirror palaeontological data, thus possibly relating chemical changes within the carbon cycle to biotic evolution. See all examples of chemical 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 withchemicalchemicalThese are words often used in combination with chemical. Click on a collocation to see more examples of it. agricultural chemical Reducing soil erosion and agriculturalchemical losses with conservation tillage. chemical application For land preparation and irrigation; includes fertilizer and chemicalapplication and weeding. chemical biology His expertise is bioorganic and synthetic chemistry, especially in carbohydrate chemistry and chemical biology. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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 chemical |
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