scandium 在《牛津英西词典》中的词汇

词条scandium在西班牙语»英语中的译文

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单语范例(未经PONS编辑处理)

英语
The group itself has not acquired a trivial name; however, scandium, yttrium and the lanthanides are sometimes called rare earth metals.
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Many metals form trifluorides, such as iron, the rare earth elements, and the metals in the aluminium and scandium columns of the periodic table.
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He works as a consultant and dealer in scandium and other exotic metals.
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The spectrum displays at least double the normal abundances of elements like magnesium, aluminum and silicon, while helium and scandium are under-abundant.
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Element 21 claims that their use of scandium improves performance compared with that of other commonly used metals.
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Particularly promising is the strengthening of aluminium alloys with as little as 0.5% scandium.
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Despite this low level of use, scandium offers significant benefits.
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Scandium atoms reside in the voids of the boron framework.
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In the light of these results compounds of scandium should be handled as compounds of moderate toxicity.
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Metallic scandium is produced industrially by the reduction of scandium oxide; this proceeds via conversion to scandium fluoride followed by a reduction with metallic calcium.
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