| 释义 |
heat hardening
基本例句
淬火
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。 |