機器
activity
bucket
building
bulldozer
clay
compactor
construction
development
dig
digger
digging
dirt
duty
earth
engineering
equipment
excavation
excavator
gravel
ground
heavy
highway
hydraulic
industrial
industry
loader
machinery
mover
outdoor
outdoors
power
quarry
road
roller
sand
scoop
shovel
site
soil
technology
tractor
transportation
truck
vehicle
wheel
work
working
yellow
定額
Asphalt road construction process. The bulldozer levels and compacts the clay soil for the base of the highway. Earthworks on a summer day.の素材 [FY310171069795]
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