機器
architecture
backhoe
bucket
built
business
construction
development
device
dig
digger
digging
dirt
dredge
dredger
earthmover
engineering
equipment
excavate
excavating
excavation
excavator
gear
industrial
industry
job
loader
machinery
mechanical
mechanism
metal
metallic
mover
outdoor
power
road
scoop
shovel
site
steel
transportation
vehicle
work
working
yellow