结果表明，焊缝存在的未焊透缺陷不影响管道的安全运行。
The results showed the existence of the flaw would not effected the safe operation of the piping.
厚板焊接结构的角焊缝，多数情况下没必要完全焊透，但是，如果未焊透部分尺寸过大，就会使焊接接头的疲劳强度大幅度降低。
There is no need to weld the joint thoroughly for the cruciform joint. But if the dimension which is not welded is too large. that will make fatigue strength reduce.
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