| 词汇 | allotrope |
| 释义 | allotrope noun[ C ] uk /ˈæl.əˌtrəʊp/ us /ˈæl.ə.troʊp/ one of many forms of a chemical element. For example, coal and graphite are different forms of carbon.同素异形体 Chemistry - general words acceptor aerosol aerosolize amphiprotic amphoteric balanced equation chemical equation electrolyte endothermic epitaxial epitaxially epitaxy exothermic inorganic chemistry ionic bond nonelectrolyte nonreactive preatomic reactive reactivity allotrope | American Dictionaryallotrope noun[ C ] us/ˈæl·əˌtroʊp/ chemistry one of many forms of a chemical element, for example, coal and graphite (= substance used in pencils) are different forms of carbon Examples of allotropeallotrope Introduction : recently we have started a program on the synthesis and investigation of the chemical structure and properties of carbon allotropes and certain carbonaceous matter. To give it its technical description, it is a blue gaseous allotrope of oxygen derived or formed naturally from diatomic oxygen by electric discharge or exposure to ultra-violet radiation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 From its electron diffraction pattern, the mineral has been considered to have a carbyne structure, the linear acetylenic carbon allotrope of carbon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The alpha allotrope is rhombohedral, and the beta allotrope is tetragonal. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Through catalysis's and convoluted magnetic fields the reactors convert ultra-pure hydrogen into an exotic allotrope of hydrogen, ekti. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At very high pressures carbon forms the more compact allotrope diamond, having nearly twice the density of graphite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Examples of solid elemental insulators are diamond (an allotrope of carbon) and sulfur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. While this allotrope is occasionally mentioned in the literature, no subsequent work appears to have been published either confirming or discrediting its existence. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A seventh plutonium allotrope exists at very high pressures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The high-temperature gamma allotrope has a body-centered cubic crystalline structure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The crystalline allotrope is gray and has a metallic luster. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The last would be a high energy allotrope of nitrogen. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Allotrope is a misnomer, as adamantium is an alloy and not a pure element. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Effect of heat: it is the most stable allotrope of carbon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Technically, graphene is a crystalline allotrope of carbon with 2-dimensional properties. 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. |
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