“weld defects of oil and gas pipeline manufacturing”的概念、定义、翻译、参考文献-科学参考

单词	weld defects of oil and gas pipeline manufacturing
释义	weld defects of oil and gas pipeline manufacturing Encyclopedia 工学油气长输管道安全技术释 weld defects of oil and gas pipeline manufacturing油气管道制造焊缝缺陷油气管道焊接过程中产生于焊缝金属及其附近热影响区钢材表面或内部的缺陷。
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