| 单词 | allotropism |
| 例句 | Allotropic state, the several conditions which occur in a case of allotropism. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z This property is spoken of by chemists as allotropism. Creation and Its Records Carbon is known to exist in several different physical states, thus illustrating what chemists call allotropism, which means that substances of identical chemical composition sometimes possess altogether different outward and physical appearances. Scientific American Supplement, No. 288, July 9, 1881 Allotropy, or allotropism, is the quality which an element often has of appearing under various forms, with different properties. An Introduction to Chemical Science These facts of allotropism have some corollaries connected with them rather startling to us of the nineteenth century. Medical Essays, 1842-1882 It is easy to call these changes by the name allotropism, but not the less do they confound our hasty generalizations. Medical Essays, 1842-1882 |
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