单词：butt seam
[化] 对接; 对接接合; 对头接合
butt seam的用法和样例：
例句
- The butt weld is easier to inspect nondestructively than the fillet welds.对接焊缝比角接焊缝更容易进行无破坏检查。
- This indicated that the fracture had initiated at the unfused butt weld in the longitudinal stiffener.研究表明裂纹是从纵向加劲助未熔透的对接焊缝中起始的。
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