英文關鍵字
adult
aggregation
apprenticeship
assembly
automaton
business
closeup
complex
computer
construction
control
conveyor
display
drafting
engineer
engineering
equipment
factory
heavy
industrial
industry
job
labor
line
machine
machinery
manufacturing
mechanical
metal
monitor
network
occupation
operator
panel
people
process
production
professional
programmer
screen
software
steel
technical
technology
touchscreen
worker
working
works
young