英文關鍵字
antena
antenna
autumn
bird
black
blue
cable
construction
danger
dangerous
electric
electrical
electricity
energy
environment
flight
flock
fly
framework
fuse
grid
group
gsm
high
industry
light
line
many
metal
migratory
nature
pole
post
power
pylon
satellite
silhouette
sit
sky
spring
starling
supply
technology
tower
urban
volt
voltage
wildlife
wire