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单词 cock-metal
释义 ˈcock-ˌmetal
[f. cock n.1]
A soft alloy consisting of two parts of copper and one of lead, used esp. for cocks or taps, whence the name.
1822J. Imison Sci. & Art II. 228 Cock metal is made with copper alloyed with zinc and lead.1864Athenæum No. 1937. 788/1 Casts in cock-metal.
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