This article introduces the failure situation, failure analysis, failure inspection and repairing on the basis of examples, also it illuminates the refitting for AC arc welding machines.
列举检修实例，详细叙述了交流弧焊机的故障现象、故障分析、故障检查与修理；介绍了交流弧焊机的改装。
Particularly, the effects of clement failure and mutual coupling on the performance of an antenna arc dis - cussed.
还专门讨论了阵元失效和互耦对天线性能的影响。
Analysis results indicate that the arc transition area between rod and head is easy to produce stress concentration, which results in earlier fatigue failure.
分析结果表明，该连杆螺栓早期疲劳断裂的原因是由于杆部与头部的过渡圆弧处产生的应力集中所导致的。
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