機器
activity
array
backhoe
blue
bucket
build
building
bulldozer
construction
construction site
crawler
development
diesel
dig
digger
digging
dirt
dredge
earth
engineering
equipment
excavate
excavation
excavator
ground
heavy
hydraulic
industrial
industry
land
large
loader
machinery
mining
modern
mover
new
power
row
scoop
shovel
site
sky
track
tractor
truck
vehicle
work
yellow