Drilling device for geotechnical engineering

The utility model discloses a drilling device for geotechnical engineering, which belongs to the technical field of geotechnical engineering and comprises a base plate, a plurality of arc-shaped openings with equal angles are formed in the outer wall of the circumference of the base plate, supportin...

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Bibliographische Detailangaben
Hauptverfasser:	LI JIE, LI FUJIAO, QIAO ZHAOXU, HU WENWEN, XUE XIAOJUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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