英文關鍵字
aerial
air
background
black
blue
cable
cold
construction
current
danger
distribution
electric
electrical
electricity
energy
engineering
fly
high
industrial
industry
line
lines
metal
move
north
over
plant
power
pylon
pylons
road
sky
snow
steel
structure
supply
tall
technology
tower
towers
traffic
transport
volt
voltage
watt
white
winter
wire