機器
activity
bucket
bulldozer
construction
construction industry
construction site
dig
digger
digging
digging soil
earth
earth mover
earth moving
engineering
equipment
excavating
excavation
excavation machine
excavator
gravel
ground
heap
heavy
industrial
industry
land vehicle
loader
machinery
mover
moving
outdoors
power
quarry
rocks
shovel
site
soil
stack
stacks
stone
stone material
tractor
transport
transportation
vehicle
working