heat hardening
英
美
- 淬火
双语例句
- So we find that hardening operation is made up of heating and quenching.
因此我们发现淬火工序包括加热和淬硬两个步骤。 - Its original heat treament processes were graphitizing annealing,quenching and tempering,then high-frequency hardening.
同时因齿条形状特殊,高频淬火时易将齿部完全淬透,不能满足用户要求。
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