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1·The girth weld of an offshore pipeline is fractured.

某海底输油管道环焊缝断裂。

2·Two passes ASAW technology for girth weld of LPG cylinder with lock butt joint is introduced.

本文介绍了液化石油气钢瓶环缝锁底接头、两道埋弧焊工艺。

3·The strength mismatch of girth weld is a concerned problem of study and application of pipeline.

环焊缝强度匹配是天然气管道研究与应用的热点问题。

4·The automatic internal girth weld tracker using contact type guide wheel as sensor is introduced in this paper.

本文介绍了一种利用接触式导轮作为传感器的内环焊缝自动跟踪装置。