单词 | beryllium |
释义 | beryllium [bǝ`ril·ē·ǝm] CHEMISTRY A chemical element, symbol Be, atomic number 4, atomic weight 9.0122. METALLURGY A rare metal, occurring naturally in combinations, with density about one-third of aluminum; used most commonly in the manufacture of beryllium-copper alloys which find numerous industrial and scientific applications. |
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