機器
automatic
carpenter
chisel
cnc
college
cut
dark
drills
education
engineer
garage
glasses
group
heavy
industrial
industry
intern
iron
joy
lamp
lathe
machining
man
manual labor
manufacturing
mask
material
material handling
new
practice
produce
production
professional
protection
school
smile
stock
student
team
trainee
turner
twist
university
welder
woman
work
worker
workshop
young