As Steelworkers, we are interested in the heat treatment of metals, because we have to know what effects the heat produced by welding or cutting has on metal.
钢铁工人最感兴趣的东西莫过于金属的热处理，因为我们得了解焊接与切割时产生的热对金属的影响。
The part of a metal that is not melted during cutting, brazing, or welding, but whose microstructure and physical properties are altered by these processes.
在经过切割、铜焊、焊接后，金属中没有熔融的部分，但其微观结构和物理特性已被改变。
The process of metal explosive welding and its essence of metal physics are introduced.
简述了金属爆炸焊接的过程和它的金属物理学本质。
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