日期：
来源：雅诚德英语网
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。
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。