英语词汇“secondary hardening”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	secondary hardening
释义	secondary hardening secondary hardening [′sek·ən‚der·ē ′härd·ən·iŋ] (metallurgy) The hardening of certain alloy steels at moderate temperatures (250-650°C) by the precipitation of carbides; the resultant hardness is greater than that obtained by tempering the steel at some lower temperature for the same time.
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