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单词 anneal
释义

anneal

Word family nounannealerannealingverbanneal
Related topics: Glass, Industry
an·neal /əˈniːl/ verb [transitiveT] technical  
TIGTIto make metal or glass hard by heating it and then slowly letting it get cold 使退火〔把金属或玻璃加热后缓缓冷却使之坚硬〕
Origin anneal
Old English onælan, from ælan to set on fire, burn
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