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。
Boundary value problem of a plate with crack and defect such as circular hole is a multi-connected domain problem.
带有裂纹和缺陷孔洞的板的问题是一个多连域的边值问题，这类问题适合用边界元法所具有的高精度特性来求解。
Boundary value problem of a plate with crack and defect such as circular hole is a multi-connected domain problem.
带有裂纹和缺陷孔洞的板的问题是一个多连域的边值问题，这类问题适合用边界元法所具有的高精度特性来求解。
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