The trolley bus picks up current from an overhead wire.

无轨电车的电能是通过架空线供给的。

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AS wire is a kind of excellent materials for overhead line.

摘要铝包钢线是一种性能优异的架空导线用材。

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AS wire is a kind of excellent materials for overhead line.

摘要铝包钢线是一种性能优异的架空导线用材。

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