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单词 tungsten
释义

tungsten

noun
/ˈtʌŋstən/
/ˈtʌŋstən/
[uncountable]
(symbol W)
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  1. a chemical element. Tungsten is a very hard silver-grey metal, used especially in making steel and in filaments for light bulbs.
    Word Originlate 18th cent.: from Swedish, from tung ‘heavy’ + sten ‘stone’.
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更新时间:2024/11/15 9:38:44