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anneal

verb
/əˈniːl/
/əˈniːl/
(specialist)
Verb Forms
present simple I / you / we / they anneal
/əˈniːl/
/əˈniːl/
he / she / it anneals
/əˈniːlz/
/əˈniːlz/
past simple annealed
/əˈniːld/
/əˈniːld/
past participle annealed
/əˈniːld/
/əˈniːld/
-ing form annealing
/əˈniːlɪŋ/
/əˈniːlɪŋ/
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  1. anneal something to heat metal or glass and allow it to cool slowly, in order to make it softer and easier to shape (= more ductile)给(金属或玻璃)退火
    Word OriginOld English onǣlan, from on + ǣlan ‘burn, bake’ from āl ‘fire, burning’. The original sense was ‘set on fire’, hence (in late Middle English) ‘subject to fire, alter by heating’.

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