打磨焊缝表面缺陷或机械损伤后的厚度小于母材的厚度。
Seam surface defect after grinding or thickness is lower than base material after mechanical treatment.
目视检查设备和焊缝的外表面质量。
Visual inspection for the surface quality of equipment and weld seams.
目视检查设备和焊缝的外表面质量。
Visual inspection for the surface quality of equipment and weld seams.
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