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小狸露宝1234
加工硬化 [词典] [化] cold hardening; work hardening; [例句]最后对校正气门发生减径、加工硬化和温升等现象作了初步的探讨。Finally, the phenomenon of diameter decrement of the alignment valve, the work-harden and the heatingi-up are expeained.
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