锈蚀部位主要在棱角、拐角、边缘和角接焊缝处。
The rusty sites are mostly at the corners, edges and their welding lines.
通过对焊缝图像进行广义模糊增强处理表明，该算法在增强对比度同时又可较好保持边缘。
Using this algorithm to dealing with weld image, the contrast ratio can be improved and the edges can be preserved well.
上述定位标记和识别标记均应放在胶片的适当位置，并离焊缝边缘至少5mm(图3)。
The above symbols should be put in the proper position of film, and the distance from weld edge should be at least 5mm (see picture3).
讨论了大直径焊管焊缝边缘引起划痕的原因，分析减少焊缝边缘划痕的方法。
This paper discusses the reason of scratch in the weld seam border of large OD. welded steel pipe, and analyses the method to reduce it.
讨论了大直径焊管焊缝边缘引起划痕的原因，分析减少焊缝边缘划痕的方法。
This paper discusses the reason of scratch in the weld seam border of large OD. welded steel pipe, and analyses the method to reduce it.
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