機器
activity
background
backhoe
big
blue
bucket
build
building
bulldozer
construction
development
dig
digger
dirt
dredger
earth
eathmoving
engineering
equipment
excavate
excavating
excavation
excavator
ground
heavy
hydraulic
industrial
industry
loader
machinery
massive
mine
mover
outdoor
power
quarry
road
sand
scoop
shovel
site
sky
soil
technology
tractor
vehicle
work
yellow