Insulating and waterproofing on insulated overhead line.

架空绝缘导线的绝缘防水.

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Corrsponding computer aided analysis software on electric field under high voltage overhead line is introduced.

介绍了利用本算法开发的输电线附近工频电场的计算机辅助分析软件.

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The lightning withstand level of catenary is higher when there are overhead line and some arresters.

在有架空回流线及采用避雷器的情况下,接触网耐雷水平较高.

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