機器
backhoe
bucket
builder
building
bulldozer
car
civil
concept
construct
construction
dig
digger
drive
engine
engineering
equipment
excavation
excavator
expert
farm
heavy
hydraulic
industrial
industry
isolated
lift
loader
loading
machinery
miniature
mining
model
object
power
scoop
shovel
soil
symbol
technology
tool
toy
tractor
transportation
truck
vehicle
wheel
white
work
yellow