...分析-输水钢管论文发表 关键词：巨型薄壁钢管 抗外压失稳 管径 壁厚 加劲环 [gap=4365]Keywords: huge thin wall water-pipeline; resisting to lose stability under external pressure; diameter of pipe; thick o..
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... thin-wall steel pipe 薄壁管 huge thin-wall steel pipe 巨型薄壁钢管 thin-wall boxing welding steel pipe 薄壁焊管 ...
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