機器
auger
automatic
boom
borehole
building
clay
constructing
construction
dig
digging
dirt
dirty
drill
drilling
earth
earthworks
energy
engineering
equipment
foundation
ground
hole
hydraulic
industrial
industry
mining
onshore
outdoor
outdoors
piles
pipe
platform
power
rig
rope
sand
shore
sky
soil
spinning
steel
technology
transport
vehicle
well
wire
work
working