wrought iron
名词 n.
英文释义
名词 n.
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A tough, malleable, ductile form of iron that is forged rather than cast, suitable for welding.
— Wrought iron is essentially iron that has been worked so that its carbon content is radically reduced. For the purposes of rail bridge-building in the 19th century, this proved revolutionary, and highly advantageous over the dangerously brittle properties of cast iron.
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数据来源: Wiktionary