The results show the surface circular defect was grinding crack which mainly caused by the inappropriate grinding technology. And insufficient tempering after quenching contributed to the initiation of the grinding cracks.
结果表明:表面的环状缺陷为磨削裂纹,磨削工艺不当是造成磨削裂纹的主要原因,同时淬火后回火不充分进一步加剧了磨削裂纹的产生。
参考来源 - 电机轴表面缺陷分析·2,447,543篇论文数据，部分数据来源于NoteExpress
From multiscale edges detection, the conclusion is drawn that in certain scale, circular defect is considered as crest edge in two directions, and bar defect in one direction.
从多尺度边缘检测的角度分析得出：在一定尺度下，圆形缺陷在两个方向上都看作是屋脊边缘，而条形缺陷只在一个方向上被看作是屋脊边缘。
From multiscale edges detection, the conclusion is drawn that in certain scale, circular defect is considered as crest edge in two directions, and bar defect in one direction.
由多尺度边缘检测理论可知：在适当尺度下，圆形缺陷在相互正交的两个方向上都是屋脊边缘，而条形缺陷只在一个方向上是屋脊边缘。
Results 24 cases showed circular filling defect, 12 cases showed stringy filling defect, ductal blocked in 30 cases, ductal dilation in 48 cases.
结果乳导管造影示：24例显示类圆形充盈缺损，12例呈条柱状缺损，30例导管杯口状堵塞，48例导管显著扩张。
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