英文關鍵字
aerial
antenna
antennas
background
broadcast
broadcasting
building
communication
connection
construction
data
dish
electricity
electromagnetic
electronic
engineer
equipment
exploration
foggy
frequency
global
industrial
industry
information
internet
mast
microwave
morning
mountain
network
object
observatory
radar
radio
satellite
science
scientists
season
shadow
signal
silhouette
sky
steel
structure
system
tablet
technology
telecommunication
telephone
tower
towers
transmission
transmitter
wireless
work