英文關鍵字
apparatus
architect
board
business
caucasian
control
device
display
electric
energy
engineer
engineering
equipment
factory
floor
helmet
indoor
industrial
industry
inside
inspector
interior
job
lab
layout
machine
male
man
manufacturing
overhaul
panel
person
plan
portrait
power
profession
professional
renovation
repair
room
safety
specialist
system
technical
technician
technology
tools
work
worker
workshop