英文關鍵字
apartment
board
business
caucasian
computer
control
device
electronics
energy
engineer
engineering
equipment
factory
flat
floor
foreman
helmet
home
industrial
industry
inside
interior
job
lab
machine
male
man
manufacturing
operator
overhaul
panel
person
plan
portrait
power
professional
reconstruction
renovation
room
safety
site
specialist
system
technical
technician
technology
tools
work
worker
workshop