gradual cooling 中文意思是什麼
gradual cooling
解釋
分段冷卻-
The process of using heat and gradual cooling to soften a metal such as copper, making it less brittle and, therefore, less likely to break when it is flexed
使用加熱和逐漸製冷的方法軟化金屬的過程，如銅。使這種金屬更堅韌些，在被彎曲的時候不容易折斷。
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