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单词 duralumin
释义 duralumin
 /doo ral"yeuh min, dyoo-/,  n.  
 an alloy of aluminum that is 4 percent copper and contains small amounts of magnesium, manganese, iron, and silicon: used for applications requiring lightness and strength, as in airplane construction.
 [1905-10; < L dur(us) hard + ALUMIN(UM)]
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更新时间:2026/8/17 16:00:14