英文關鍵字
aerial
antenna
appearing
blue
calls
cellphone
cellular
circle
circling
close
clouds
cloudy
communication
covering
definition
digital
environment
equipment
faster
flares
footage
frequency
global
half
high
imt
lapse
metal
mobile
moving
network
one
other
phone
radio
receiver
region
repeater
resolution
rural
satellite
shot
side
signal
sky
speed
station
steel
structure
sun
sunset
technology
telecommunication
telephone
time
tower
transceiver
transmission
transmitter
upgrade
video
wireless