| 单词 | tungsten |
| 释义 | tungsten —tungstenic /tung sten"ik/, adj. /tung"steuhn/, n. Chem. a rare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410° C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W; at. wt.: 183.85; at. no.: 74; sp. gr.: 19.3. Also called wolfram. [1760-70; < Sw, equiv. to tung heavy + sten stone] |
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