drilling soil science and construction |
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| navigate by keyword : backlog basis boot borer boring building built construction core cored cores coring depths device dredging drill drillhole drilling drillpipes engine enterprise exploitation exploration exploratory exploring gall geological ground hole jumbo land large largescale machine mounting obtaining opening operation pioneering planchet plot project prospecting research retrieval rockdrill rod sample science setup shear site slash soil stem string structure study texture work |
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| Drilling in soil science and construction study of soil structure at different depths. Obtaining a core sample. A special composition is used to get a strong core |
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