用广义ubet方法分析了烧结钢圆环光滑平板镦粗变形，并作了实验验证。
The general UBET is applied to analyze deformation of sintered steel ring is smooth plate upsetting, and theoretical calculations are compared to experimental results.
副卫细胞5—7个，围成一个圆环，表面光滑或有毛。
Vice-cell 5-7, Wai into a roundabout, smooth surface or hair.
副卫细胞5—7个，围成一个圆环，表面光滑或有毛。
Vice-cell 5-7, Wai into a roundabout, smooth surface or hair.
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