機器
activity
background
backhoe
bucket
build
builder
bulldozer
concept
construction
crane
design
dig
digger
dump
earth
equipment
excavate
excavating
excavation
excavator
heavy
hydraulic
industrial
industry
isolated
job
loader
loading
machinery
mover
object
power
powerful
scoop
set
shovel
site
soil
technology
tractor
transport
transportation
truck
under
vehicle
wheel
work
worker
yellow