英文關鍵字
button
buttons
caucasian
command
commandcrane
construction
control
crane
display
down
duty
elevator
empty
engineer
engineering
equipment
factory
hall
hanging
hardhat
heavy
helmet
hook
icon
industrial
industry
isolated
laborer
large
leading
machine
male
man
manufacturing
nobody
overweight
panel
part
people
person
plant
remote
rope
striker
weight
work
worker
working
yellow