Radial horizontal well is the most complicated one in horizontal well series, it has a major horizontal section and one or several branch sections.
辐向水平井是水平井系列中的高难度井，它除了有一段水平井段外，还有另外一条或多条分支井段。
Applying the radial section scanning method based on gray centroid, the image edges are tested with a sub-pixel precision.
采用基于灰度质心法的径向截面扫描法对图像边缘进行亚像素级检测；
Urn shelving, which occupies most of the building's section, is arranged in different typologies: radial, circular, and orthogonal.
骨灰盒的搁置架占据了建筑的大部分，它们以不同类型排列着：射线型、圆形、正交直线型等。
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