英文關鍵字
antenna
background
broadcast
broadcasting
cable
cell
cellphone
cellular
communication
connection
electrical
electronic
engineering
equipment
frequency
global
high
industrial
industry
internet
maintenance
metal
mobile
network
phone
pole
power
radio
satellite
signal
sky
smart
smartphone
station
steel
structure
technician
technology
telecom
telecommunication
telecommunications
telephone
tower
transmission
transmitter
wireless