英文關鍵字
adult
apartment
architect
board
building
business
caucasian
computer
control
device
drawings
electric
electronics
engineer
engineering
equipment
factory
foreman
helmet
house
industrial
industry
inside
interior
job
lab
machine
male
man
manufacturing
panel
people
person
plan
portrait
power
professional
reconstruction
repair
room
safety
system
technical
technician
technology
tools
work
worker
workshop
young