Study showed that angle deformation of T joint is changed along the welded seam length.
研究表明,T形接头的角变形沿焊缝长度方向是变化的。
This welded seam is found an obvious air hole and an unqualified undercut with macroscopic check.
这个焊口以宏观检查发现明显的气孔和超长的咬边。
Must be Identified with the Tank that it belong, included the Slop Tanks, in proper manner, like welded seam or similar.
所有的人孔盖上必须用电焊或者类似方式做好舱名标识。
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