機器
auger
backcountry
bore
car
construction
countryside
crop
deep
desert
dig
dirt
drill
drilling
earth
energy
engineering
equipment
field
geology
geotechnical
geothermal
ground
hole
land
landscape
machinery
mechanical
middle
petroleum
plantation
platform
power
rig
sand
seismic
soil
string
technology
test
thailand
truck
underground
urban
wagon
water
well
work