“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	plant stress avoidance plant stress ecophysiology plant stress response plant sulfur deficiency symptom plant susceptibility gene plant symbiotic microbe plant systematics plant taxonomic system plant taxonomy plant temperature Plant the State Tree of Russia plant tissue plant tissue and cell culture plant tissue culture plant tissue culture medium plant tissue culture technique plant toxins plant tumor plant vaccine plant varieties trade plant variety plant variety protection plant variety rights protection plant virus plant virus diseases

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