单词 | wolfram |
释义 | wolfram/ˈwʊlfrəm![]() noun [mass noun] Tungsten or its ore, especially as a commercial commodity.By 1907 most of the gold mining was replaced by tin and wolfram....
OriginMid 18th century: from German, assumed to be a miners' term, perhaps from Wolf 'wolf' + Middle High German rām 'soot', probably originally a pejorative term referring to the ore's inferiority to tin, with which it occurred. |
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