機器
action
activity
arm
backhoe
big
blade
blue
bucket
build
building
bulldozer
construction
dig
digger
digging
dirt
earth
equipment
excavate
excavating
excavation
excavator
ground
heavy
hydraulic
industrial
industry
isolated
large
loader
loading
machinery
metal
mining
mover
outdoors
power
sand
scoop
shovel
site
sky
soil
steel
tractor
vehicle
white
work
yellow