Households will receive signals from towers, fiber or copper lines.

家家户户将收到卫星、微波发射塔、纤维线或铜线传送的信号。

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At that time, how did you think of using the copper lines like conductor?

当初怎么想起用这种类似导体的铜线呢？

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Data bits flow from cell towers through fiber and copper lines to a switching station.

数据从信号接收塔经由光纤和铜线流至交换站。

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And by tearing out the copper lines in a Fios neighborhood, Verizon's locked up the customer for good.

FORBES: Magazine Article

But even the landlines need less human attention because Verizon is rapidly replacing old-fashioned copper lines with lower-maintenance, fiber-optic cables.

NPR: Practically Human: Can Smart Machines Do Your Job?

Unfortunately, with traditional copper lines, once you cross six or seven miles, they drop off to half a meg, if you can even get that.

BBC: Rural county sees struggles with speed