日本語WordNet(英和)
coltan
名詞
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Wiktionary英語版
出典：Wiktionary
coltan
名詞
coltan (複数形 coltans)
- (mineralogy) A metallic ore, (Fe,Mn)(Ta,Nb)2O6, from which the elements niobium and tantalum are extracted.
- 2007, Elizabeth Grossman, High Tech Trash, Island Press, →ISBN, page 46:
- […] as of 2003 over one billion cell phones were in use worldwide, so by the time the high-tech bubble approached its bursting point in 2000 and 2001, coltan had become an extremely hot commodity.
- 2014, Adam Schatz, ‘Ça va un peu’, London Review of Books, vol. 36 no. 20:
- Consider your mobile phone. Before it was assembled in a Chinese factory, the coltan in its capacitors may have been dug by miners in the Eastern Congo, where millions have died in a series of wars over ‘conflict minerals’, though we give this no more thought than previous generations of Westerners gave to the Congolese origins of the ivory in their piano keys, the rubber in their tyres, the copper in their bullet casings or the uranium in their bombs.
Further reading
アナグラム
- Calton, locant
ウィキペディア英語版
出典：Wikipedia
Coltan
出典:『Wikipedia』 (2011/07/06 08:41 UTC 版)
英語による解説
ウィキペディア英語版からの引用
- 引用
Coltan is the industrial name for columbite–tantalite, a dull black metallic mineral from which the elements niobium (formerly "columbium") and tantalum are extracted. The niobium-dominant mineral is columbite, hence the "col" half of the term. The mineral concentrates dominated by tantalum are referred to as tantalite.
- 日本語ワードネット1.1版 (C) 情報通信研究機構, 2009-2010 License All rights reserved.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. License
- Wiktionary
- Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL).
Weblio英和・和英辞典に掲載されている「Wiktionary英語版」の記事は、Wiktionaryのcoltan (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
- Wikipedia
- Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL).
Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのColtan (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
