英文關鍵字
antenna
architect
arm
background
blue
broadcast
broadcasting
building
caucasian
clothing
communication
communications
construction
denim
dish
electrical
electronic
engineer
engineering
equipment
fixing
foreman
hardhat
helmet
home
industrial
industry
installer
male
man
modern
network
occupation
people
person
radio
roof
satellite
signal
site
sky
supervisor
technology
telecommunication
television
transmission
wireless
work
worker