英语词汇“top and bottom process”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	top and bottom process
释义	top and bottom process top and bottom process [¦täp ən ¦bäd·əm ‚prä·səs] (metallurgy) A process in which sodium sulfide is added to molten copper-nickel sulfide to form a two-layer melt, with the bulk of the nickel in the bottom layer.
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