anneal
Longman Dictionary of Contemporary English 5++LDOCE 5++an·neal /əˈniːl/ verb [transitive] 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〕→ See Verb tableOrigin anneal Old English onælan, from ælan “to set on fire, burn”
an·neal verbChineseSyllable
Corpus by make to it glass heating metal hard or
anneal
an‧neal /əˈniːl/
verb [transitive] technical
an‧neal /əˈniːl/
verb [transitive] technical Language: Old English
Origin: onælan, from ælan 'to set on fire, burn'
to make metal or glass hard by heating it and then slowly letting it get cold
Origin: onælan, from ælan 'to set on fire, burn'