機器
background
blade
bucket
build
bulldozer
business
construction
copyspace
diesel
dig
digger
digging
dozer
dredger
earthmoving
equipment
excavate
excavation
excavator
heavy
hydraulic
industrial
industry
isolated
loader
loading
machinery
modern
mover
occupation
operator
power
rubble
scoop
shovel
track
tractor
transport
transportation
vehicle
wheel
white
work
yellow