引进基脉冲响应函数概念，并探讨了椭圆形缺陷后场散射基脉冲响应函数。
The basic impulse response function is introduced, and that of elliptical flaws is studied.
针对原木中的漏节等圆形缺陷，本文设计了改进的拉普拉斯算子法增强图像中目标的清晰度。
Regarding the circular defects such as leakage gnarl in log, this paper designed an improved Laplaces special gradient method to clarify the target image.
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。
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.
在蓝尼罗，三层白金戒指加一颗椭圆形蓝宝石（不到一克拉，色泽好，无明显缺陷）和侧面得两颗0.15克拉钻石要价1575美元。
At Blue Nile, a three-stone white gold ring set with an oval-cut sapphire (just shy of one carat, good color, no visible flaws) and flanked by two 0.15-carat diamonds goes for $1,575.
圆形平面或穹形平顶存在着明显的声学缺陷，这种现象在半球形房间中尤为严重。
Halls with circular plan or domed ceiling are apt to significant acoustic defects; and, it is even worse in hemi-spherical halls.
如果某管筒不是圆形或者处于误差范围之外，会将其识别为缺陷，并且不予填装。
If a tube is out-of-round or outside of the tolerance range, it is identified as faulty and is not filled.
传统的直接转矩控制采用六边形磁链控制或六区间的圆形磁链控制，造成转矩脉动大，而且当考虑定子电阻压降的影响时，其区间选择存在缺陷。
Traditional DTC uses hexagon flux control or six-section circle-flux. When the voltage of stator resistance is considered, its section choice has defect.
突出的或圆形的眼睛属于缺陷。
在此基础上，进一步分析了带纵向内筋的筒形件旋压件时出现的几种质量缺陷，对椭圆形端口、表面鳞状剥离现象和隆起进行了解释说明。
Several quality defect are studied when thin-walled tubular parts with longitudinal inner rib is spinning, phenomenon of oval port, superficial peel-off and pilling are interpreted.
在此基础上，进一步分析了带纵向内筋的筒形件旋压件时出现的几种质量缺陷，对椭圆形端口、表面鳞状剥离现象和隆起进行了解释说明。
Several quality defect are studied when thin-walled tubular parts with longitudinal inner rib is spinning, phenomenon of oval port, superficial peel-off and pilling are interpreted.
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