“clathrate”的概念、定义、翻译、参考文献-科学参考

　

单词	clathrate
释义	clathrate Astronomy A structure in which molecules of one substance (the guest) are physically trapped in cavities within the crystal lattice of another (the host), without specific chemical bonding between them. The noble gases and some hydrocarbons form clathrates with water, occupying cavities in an open ice structure; they are called clathrate hydrates. Cometary nuclei may contain ice in the form of clathrate hydrates. Chemistry A solid mixture in which small molecules of one compound or element are trapped in holes in the crystal lattice of another substance. Clathrates are sometimes called enclosure compounds or cage compounds, but they are not true compounds (the molecules are not held by chemical bonds). Quinol and ice both form clathrates with such substances as sulphur dioxide and xenon. Geology and Earth Sciences A compound in which molecules of one substance, commonly a noble gas, are completely enclosed within the crystal structure of another substance. Typical examples are Kr and Xe encapsulated in zeolites structures, or Ar, Kr, and Xe trapped in water ice.
随便看	flat spot flattening flattening, polar flat tuning flatwise bend flatworm flatworms flavin adenine dinucleotide flavones flavonoid flavonoids flavoprotein flavour flax F layer F-layer FLC protein fleas Fleischmann, Martin Fleming, Sir Alexander Fleming, Sir Alexander (1881–1955) Fleming, Sir John Ambrose Fleming, Williamina Fleming, Williamina Paton (1857–1911) Fleming’s rules

　

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