機器
bucket
bulldozer
construction
contractor
crane
dig
dirt
dirty
dozer
drive
engineer
equipment
excavation
exploitation
extracting
forklift
grader
graphic
heavy
hydraulic
icon
industrial
industry
isolated
labor
loader
loading
machinery
mechanic
mining
mover
operate
operator
power
ripper
shovel
symbol
technician
technology
tool
track
tractor
transport
transportation
truck
vehicle
wheel
work