1757, from German Wolfram, wolform "iron tungstate" (1562), of obscure etymology. It looks like "wolf-cream" (from rahm "cream"), but the second element might be Middle High German ram (German Rahm) "dirty mark, soot;" if so, perhaps "so called in sign of contempt because it was regarded of lesser value than tin and caused a considerable loss of tin during the smelting process in the furnace" [Klein]. Or perhaps the word is originally a personal name, "wolf-raven."
实用例句
1. The bullet is made of Wolfram Carbide , strong and durable.
扩管头为碳化钨材质, 永不磨损.
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2. Mathematical physics keeps Wolfram in business.
数学物理学不断钨生意.
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3. The most significant fields are tobacco, paper, wolfram, camphor, farm implements and fertilizers ( such as lime ).
这里重要的是烟 、 纸 、 钨砂 、 樟脑 、 农具和肥料 ( 石灰等 ).
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4. The determination of Wolfram in low alloy steel with ICP - AES method is studied.
研究了用ICP -AES 法测定低合金钢中元素钨的测定方法.
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5. Wolfram tailing glass - ceramic proportion of wolfram tailing and other ingredients such as feldspar , limestone, and flux.
