英文關鍵字
adult
apparatus
blue
business
cables
caucasian
clipboard
connection
control
data
device
digital
electric
engineer
engineering
equipment
factory
fix
helmet
industrial
industry
information
job
lab
machine
male
man
management
manager
manual
modern
person
power
professional
project
rack
room
safety
server
service
specialist
station
technical
technician
technology
virtual
work
worker
young