英文關鍵字
operator
safety
manufacturing
milling
workshop
plant
machinery
steel
lathe
production
industry
computer
working
operating
factory
technician
technology
engineer
industrial
workplace
metal
equipment
automated
precision
occupation
expertise
professional
tablet
worker
touchscreen
engineering
protection
man
digital
standing
machine
caucasian
mechanic
view
composite
connection
communication
profession
smiling
wrench
looking
male
handsome
mid
overalls
holding
front
control
panel