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真空回火 [zhēn kōng huí huǒ]
[冶] vacuum tempering
- 可以满足模具的真空淬火、回火、调质等多种热处理需求；
Ltd. employs professional hot-processing plant satisfying the various hot-processing requirements. - 叙述了模具钢经真空回火后的着色现象以及真空回火的必要性。
Narrated the colouring phenomenon after the die and mold steel vacuum tempering and the necessity of vacuum tempering. - 冲裁模材料常用的热处理为何？渗氮法？真空渗氮法？之后须回火吗？几次？
What is the most often used heat treatment method? Gas nitriding or vacuum nitriding? Post tampering needed? How many times?
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中国词汇量第二的英语词典
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