機器
background
backhoe
bulldozer
close
closeup
construct
construction
continuous
crawler
detail
dirty
earth
earthmover
engineering
equipment
excavating
excavator
gear
ground
heavy
industrial
industry
iron
machinery
metal
mover
muddy
old
outdoors
power
rust
sand
service
shovel
soil
sprocket
steel
system
technology
tool
track
tracked
tractor
transport
transportation
truck
vehicle
wheel
work