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单词 cock-brass
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cock-brass
cock-brass n. Obsolete an alloy consisting of two parts of copper and one of lead, formerly used for cocks and taps; = cock metal n.
ΚΠ
1844 Archaeol. Jrnl. Sept. 210 The usual hard kind of brass anciently termed latten..appears to be identical in composition with that now used for making cocks for casks or cisterns, technically called cock-brass.
1902 I. S. Leadam in F. P. Barnard Compan. Eng. Hist. 356/2 (gloss.) Latten, an alloy of copper and zinc... It is what is now called ‘cock-brass’, a specially hard mixed metal used for the cocks of casks and cisterns.
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