機器
action
activity
architecture
arm
back
backhoe
blade
blue
bucket
building
bulldozer
caterpillar
construct
construction
development
diesel
digger
dirt
dust
earth
earthmover
engine
equipment
excavate
excavator
ground
heavy
hoe
hydraulic
industrial
industry
iron
labor
land
large
load
loader
machinery
metal
mover
orange
power
powerful
sand
scoop
shovel
site
sky
soil
steel
technology
tool
track
tractor
transport
truck
vehicle
work
yellow