The use of the overhead power line corridors and towers were set up in line is a very economical way of cable lying.
利用架空电力线路走廊，在线路杆塔上进行架设，是一种非常经济的光缆敷设方式。
The use of the overhead power line corridors and towers were set up in line is a very economical way of cable lying.
利用架空电力线路走廊，在线路杆塔上进行架设，是一种非常经济的光缆敷设方式。
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