英文關鍵字
aerial
antenna
blue
broadcast
broadcasting
cell
cellphone
cellular
clip
cloud
communicate
communication
connection
electromagnetic
electronic
engineering
equipment
field
frame
global
gsm
industry
metal
mobile
move
nature
network
networking
phone
radiation
radio
receiver
reception
relay
signal
sky
station
steel
structure
sunset
tall
technology
telecommunication
timelapse
tower
transceivers
transmitter
wave
wireless