Grounding and its notices were probed into construction of trolley isolative wire. How to eliminate safe hidden troubles in construction was discussed also.
探讨架空绝缘线施工时的接地问题
项及如何消除施工中的安全隐患。
jià kōng
built on stilts, impracticable, make sb. a mere figurehead声明：
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架端, 架杆, 架构, 架构设计, 架锯, 架空, 架空的, 架空电缆, 架空高压线路, 架空配电,