英语词汇“zone refining”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	zone refining
释义	Word Frequency zone refining noun a technique for producing solids of extreme purity, esp for use in semiconductors. The material, in the form of a bar, is melted in one small region that is passed along the solid. Impurities concentrate in the melt and are moved to the end of the bar
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