機器
activity
background
backhoe
bucket
build
building
bulldozer
construction
development
dig
digger
earth
earthmoving
earthwork
engineering
equipment
excavation
excavator
ground
heavy
hydraulic
industrial
industry
loader
loading
machinery
mine
mover
moving
outdoors
power
quarry
road
roadwork
sand
sandpit
scoop
shovel
site
sky
soil
tractor
transportation
truck
vehicle
work
yellow