機器
action
activity
alps
big
buldozer
caterpillar
chains
danger
diesel
digger
dust
engine
equipment
excavation
force
granite
ground
heavy
hydraulic
industrial
industry
italy
job
large
machinery
marble
massive
mechanic
metal
mine
motor
outdoor
powder
power
quarry
rocks
shovel
stones
tool
track
tractor
vehicle
wheels
work
worker
yellow