The reasons and importance of setting underground protective grounding net to coal mine are introduced.
介绍了煤矿井下设置保护接地网的原因及重要性。
Loop net of DC system is an important factor in the grounding fault detection.
直流系统环网是接地故障检测中的一个关键因素。
Loop net of DC system is an important factor in the grounding fault detection.
直流系统环网是接地故障检测中的一个关键因素。
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