overhaul and repair
... 底坑检查修理照明装配 light device of pit inspection 检查与修理 overhaul and repair 检查并修理转喷器 Inspect and repair diverter ...
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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。
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.
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