英文關鍵字
access
antenna
background
bandwidth
base
broadcast
broadcasting
cell
cellular
city
communication
connect
connection
copy
data
digital
equipment
fast
frequency
global
high
internet
iot
lapse
mast
mobile
network
performance
phone
pylon
radio
receiver
repeater
satellite
service
signal
sky
space
speed
station
technology
telecom
telecommunication
telecommunications
telephone
time
tower
transmission
transmitter