low-temperature tempering

• 低温回火

low-temperature tempering的用法和样例：

例句

1. The reason of the increase of the impact fatigue life at normalizing and low temperature tempering was discussed.
   分析了多冲疲劳裂纹扩展的行为，讨论了正火低温回火提高冲击疲劳的原因。