英文關鍵字
antenna
broadcasting
cable
cellular
communication
concept
connection
construction
data
digital
electronic
equipment
exploration
global
industrial
instruments
lapse
media
mobile
modern
net
network
parabolic
radar
radio
receiver
reception
remote
research
satellite
science
search
signal
sky
space
station
system
technology
telecommunications
telescopes
television
time
transmission
transmit
transmitter
wave
wireless