| 单词 | allotropy |
| 例句 | Thus carbon occurs as the diamond, and as charcoal and plumbago, and is therefore regarded as a substance subject to allotropy. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide Before leaving this phase of inorganic chemistry, we may mention other historical examples of allotropy. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" And this hypothesis is entirely in harmony with the phenomena of allotropy. Essays: Scientific, Political, & Speculative, Vol. I There seems to be a similar allotropy working in human nature. Craftsmanship in Teaching But it is evident that this is but one of many passages where Indra by implication is compared to the sun; and comparisons do not indicate allotropy. The Religions of India Handbooks on the History of Religions, Volume 1, Edited by Morris Jastrow Instances of allotropy in pure metals are: Bolley's lead, which oxidizes readily in air; Schutzenberger's copper; Fritsche' tin, which falls to powder when exposed to exceptionally cold winter; Gore's antimony; Graham's palladium and allotropic nickel. Scientific American Supplement, No. 799, April 25, 1891 The phenomenon of allotropy is not confined to the non-metals, for evidence has been advanced to show that allotropy is far commoner than hitherto supposed. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Among the special may be named the parallelism between allotropy and isomerism; the numerous lines in the spectrum of each element; and the cyclical law of Newlands and Mendeljeff. Essays: Scientific, Political, & Speculative, Vol. I Theory of Allotropy.—The last three experiments well illustrate allotropy. An Introduction to Chemical Science The allotropy of arsenic and antimony is also worthy of notice, but in the case of the first element the variation is essentially non-metallic, closely resembling that of phosphorus. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" How many it has in the allotropic forms, as a solid, is beyond our knowledge; but it seems quite likely that allotropy is due to some change of molecular structure. An Introduction to Chemical Science The term allotropy has also been applied to inorganic compounds, identical in composition, but assuming different crystallographic forms. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。