機器
background
backhoe
big
blue
bucket
building
bulldozer
construction
dig
digger
digging
dirt
dirty
dump
earth
engineering
equipment
excavation
excavator
gravel
heavy
hydraulic
industrial
industry
iron
landscape
large
loader
loading
machinery
metal
mine
old
opencast
pit
power
quarry
rock
sand
scoop
shovel
site
sky
stone
technology
tractor
vehicle
work
yellow