機器
activity
backhoe
bucket
bulldozer
commercial
construction
construction industry
construction site
contractor
crawler loader
demolition
development
dig
digger
dirt
earth
earth moving
earth work
earthmoving
earthwork
engineering
equalization
equalizes
equipment
excavate
excavating
excavation
excavator
grading
ground
hydraulic
industrial
industry
land
landscape
landscaping
loader
mover
occupation
operator
quarry
sand
scoop
shovel
soil
spreading
tractor
work
yellow