機器
action
activity
blade
bucket
build
bulldozer
construct
construction
contractor
crawler
dig
digger
dirt
dirty
disposal
dredge
dredger
earth
equipment
excavation
excavator
heavy
hydraulic
industrial
industry
iron
loader
machinery
mining
mover
operator
outdoors
push
sand
scoop
scraper
shovel
site
soil
steel
tool
tractor
unloading
vehicle
wheel
work