如图所示不旋转的铝件在强大压力作用下顶住高速旋转的铜件通过 做功的方式使两者接触处温度急剧升高内能增大这样铜和铝接触处的分子相互渗透 Template




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tomski如图所示不旋转的铝件在强大压力作用下顶住高速旋转的铜件通过 做功的方式使两者接触处温度急剧升高内能增大这样铜和铝接触处的分子相互渗透 coloring