機器
action
activity
asphalt
backhoe
blade
buildings
bulldozer
business
compactor
construction
drag
dump truck
earthworks
edifice
engineer
engineering
equipment
excavator
grade
grader
grater
gravel
ground
heavy
hydraulic
industry
land
landfill
large
leveling
mining
motor
outdoor
plant
power
project
road
roadwork
scoop
scraper
stones
structure
technical
technique
technology
track
tractor
vehicle
wheel