機器
action
activity
backhoe
bucket
building
bulldozer
construction
dig
digger
digging
dirt
earth
engineering
equipment
excavate
excavation
excavator
ground
heavy
hydraulic
industrial
industry
loader
machinery
mining
mover
outdoor
power
road
sand
scoop
shovel
side
site
soil
stone
terrain
track
tractor
transportation
truck
vehicle
wheel
work
yellow