“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。
随便看	lever connection Leverett Park lever for adjusting lever gyroscope lever gyrosecope lever of crane lever of force lever principle lever relationship Le Verrier Leverrier ring lever rule lever scale lever stop lever-type steam distributing gear Levi Leviathan Levi Ben Gershom Levi Ben Gerson Levi Civita Levi-Civita Levi Civita connection Levi-Civita connection Levi-Civita crater Levi-Civita density

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