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单词
zone melting
释义
WordReference Random House Unabridged Dictionary of American English © 2024
zone
′
melt′ing,
Metallurgy
a process of purifying any of various metals and other materials, as germanium or silicon, by passing it in bar form through an induction coil. Also called
zone
′
refin′ing.
Cf.
cage zone melting.
1955–60
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更新时间:2025/11/23 3:16:06