機器
asphalt
auger
bit
bore
borehole
boring
build
chuck
city
construction
development
drill
drilling
earth
engineering
equipment
foundation
ground
groundwork
hammer
hole
hydraulic
industrial
industry
machinery
maintenance
metal
mining
oil
outdoor
pavement
perforate
pipe
power
repairing
rig
road
sand
site
soil
steel
street
survey
technology
tool
urban
vehicle