在定位焊时焊缝内侧应停止充氩维护。

At the position of the weld, the inner side of the weld should be stopped.

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结果表明，超声c扫描技术可实现对结构件的电子束焊焊缝缺陷的定性、定位、定量检测。

It shows that the ultrasonic C-scan technique can not only identifies and locates the defect, but also precisely measures the defect size.

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