英文關鍵字
aerial
antenna
background
broadcast
broadcasting
business
cell
cellular
city
communication
connection
construction
data
digital
dish
encryption
equipment
field
frequency
global
green
gsm
industry
information
internet
leaves
link
mast
metal
microwave
mobile
network
phone
radar
radio
safety
satellite
science
station
structure
sunrise
technology
telecom
telecommunication
telephone
television
tower
transmission
transmitter
vintage
wireless