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Duralumin Duralumin
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noun
1. [mass noun] (trademark)a hard, light alloy of aluminium with copper and other elements
[商标] 杜拉铝,硬铝
【语源】
1. early 20th cent.: perhaps from Latin durus 'hard' + aluminium, but probably influenced by Düren, the name of the Rhineland town where such alloys were first produced

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