機器
activity
asphalt
blade
building
construction
development
digging
dirty
earth
engineering
equipment
excavation
grader
grading
gravel
ground
heavy
hydraulic
industrial
industry
land
large
level
leveler
line
long
machinery
mining
motor
mover
outdoor
power
road
roadwork
rural
sand
scoop
site
steel
surface
technical
tire
track
tractor
transport
urban
vehicle
work
yellow