機器
activity
agricultural
archaeology
borrowing
bucket
building
bulldozer
business
cloud
construction
cutting
development
digging
dirt
earth
end
engineer
engineering
equipment
food
front
grass
gravel
heavy
hollow
horizontal
hydraulic
industry
land
large
loader
loading
machinery
mine
mover
opening
overweight
pit
platform
power
pub
quarry
sand
scoop
shovel
site
trap
vehicle
working