英文關鍵字
balkans
blue
brazil
cables
city
communication
connection
electric
electrical
electricity
energy
high
homes
industrial
industry
infrastructure
internet
kosovo
lights
line
lines
many
mess
old
overhead
pillar
power
pylon
residential
rope
services
sky
steel
street
supply
tangle
tangled
technology
telegraph
telephone
tower
transmission
urban
voltage
wire
wires
wiring