在内部作成圆形凸肩以代替锐缘孔板状的侧面。
It has rounded shoulders inside instead of the sharp orifice - like edge.
对于有限尺寸板内开孔的情形，文中用有限单元法来分析腰圆形孔口的应力分布和应力集中。
For the plates with finite dimensions, the finite element method is used to obtain the stress distribution and stress concentration around the ovaloid opening.
在内部作成圆形凸肩以代替锐缘孔板状的侧面。
It has rounded shoulders inside instead of the sharp orifice-like edge.
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