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词汇 pimple metal
释义

Definition of pimple metal in English:

pimple metal

noun
Metallurgy
  • An intermediate product in the smelting of copper, containing about 75 per cent or more of copper and having pimples on the surface formed by escaping bubbles of sulphur dioxide.

Origin

Late 19th century; earliest use found in Charles Bloxam (1831–1887), chemist.

Definition of pimple metal in US English:

pimple metal

noun
Metallurgy
  • An intermediate product in the smelting of copper, containing about 75 per cent or more of copper and having pimples on the surface formed by escaping bubbles of sulphur dioxide.

Origin

Late 19th century; earliest use found in Charles Bloxam (1831–1887), chemist.

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