英文關鍵字
antenna
arm
background
broadcast
broadcasting
building
built
cable
cell
channels
communication
communications
construction
contractor
day
denim
dish
electrical
engineer
engineering
equipment
foreman
hardhat
helmet
home
industrial
industry
install
installer
ladder
male
man
mobile
network
outside
people
person
protection
radio
satellite
signal
site
sky
supervisor
technology
television
wireless
work
worker