| 单词 | allotropy |
| 释义 | allotropy noun[U] chemistryspecializeduk/əˈlɒt.rə.piː/us/əˈlɑː.trə.piː/theexistenceof the samechemicalsubstancein more than oneform, each with differentphysicalqualities 同素异形（现象）Physics: the state of matter
Examplesofallotropyallotropy He also examined the phenomenon ofallotropy, in which the arrangements of the same atoms, such as carbon, give different forms, such as graphite or diamond, which exhibit different qualities. From theCambridge English Corpus Polymorphism can potentially be found in many crystalline materials including polymers, minerals, and metals, and is related toallotropy, which refers to elemental solids. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.For pure chemical elements, polymorphism is known asallotropy. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.He also introduced the possibility ofallotropyin chemical elements when he discovered that diamond is a crystalline form of carbon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The term "allotropy" is used for elements only, not for compounds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This rearrangement, calledallotropyor polymorphism, may occur several times, at many different temperatures for a particular metal. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Polymorphism can potentially be found in any crystalline material including polymers, minerals, and metals, and is related toallotropy, which refers to chemical elements. 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. |
| 随便看 |
|
英汉双解词典包含207842条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。