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单词
carbon arc
释义
carbon arc
n.
1.
(as light source)
碳弧(在两个碳电极之间产生, 旧时用作光源)
2.
(in welding)
碳弧(指碳电极和被焊接的材料之间产生的电弧)
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更新时间:2026/8/26 5:35:47