機器
armature
auger
bored pile
borehole
boring
build
buildings
concrete
construction
construction site
device
dredger
drill
driller
drilling
drilling rig
driven
driver
earth
engine
engineering
equipment
excavation
excavator
foundation
foundation pile
geology
ground
hole
hydraulic
industrial
industry
machinery
outdoors
pile
pile foundation
power
project
rotary drill
rotary drilling tool
site
skill
soil
steel reinforcement
strong
technology
tool
vehicle
work