boreholes
trou de forage
Perforación
Otwór wiertniczy
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borehull
borehul
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A borehole is a deep, narrow hole drilled into the ground for various purposes, including water extraction, mineral exploration, or geotechnical investigation, while a tubewell is a type of well in which a long, narrow steel tube or PVC pipe is sunk into the ground to extract groundwater.