... weld reinforcement焊缝补强; 焊缝加强; 焊接补强 weld repairs焊接修补 weld ripple焊缝波纹 ...
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... weld reinforcent焊补苴强; 焊缝增强; 烧焊补强 weld repairs烧焊修补 weld ripple焊缝波浪 ...
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油气金属管道带压焊补_建筑科学论文 关键词:焊补、油气管道、带压不置换 [gap=289]Key Words: weld repairs, oil and gas pipelines, pressure not replacement
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