... 周边井：perimeter well 周边断层：circumferential fault 周壁三缝孢亚类：perinotrileti ...
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An analysis of high fault probability in circumferential welding seams in pressure vessels was carried out from the cause of design, the standard based on and the process of fabrication.
本文从压力容器设计、制造及标准三方面分析了压力容器环焊缝事故率高的原因，提出了相应的对策。
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