The non-homogeneous metal flow during the extrusion forming process was well controlled by introducing a non-equilibrium parameter of metal flow, the mean-square deviation of velocity (SDV).
通过引进一个反映金属流速不均衡性的参数———流速均方差，有效地控制型材挤压成形时金属流动的不均匀性。
The non-homogeneous metal flow during the extrusion forming process was well controlled by introducing a non-equilibrium parameter of metal flow, the mean-square deviation of velocity (SDV).
通过引进一个反映金属流速不均衡性的参数———流速均方差，有效地控制型材挤压成形时金属流动的不均匀性。
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