回火的 meaning in Chinese

tempered

High strength , quenched , and tempered structural steels
淬火和回火的高强度结构钢
Gears - surface temper etch inspection after grinding
磨削后表面回火的浸蚀检验
All heat treatment by quenching and tempering
所有萃取和回火的热处理方法。
Steel bars , carbon , quenched and tempered
经淬火和回火的碳素钢棒
Study on 17cr2ni2moa carburizing and quenching amp; amp; tempering process
渗碳淬火回火的工艺研究

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