掉瓷
Porcelain chipping
以上为机器翻译结果，长、整句建议使用 人工翻译 。
针对运行中瓷质绝缘子掉串事故进行分析，找出事故的主要原因，并提出相应的防范措施。
In this paper, the main reason of bunch - drop accident of ceramic insulator in transmission line has been analyzed and found out, then some relevant countermeasures have been presented.
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