n.

a surgical instrument used to remove sections of bone from the skull

同義詞：trephine

a drill for cutting circular holes around a center

Trepanning
Laser Trepanning for Industrial Applications
Trepanning or trephines: a history of bone marrow biopsy
Trepanning on unidirectional composites: delamination studies
ELECTROCHEMICAL SPARK TREPANNING OF ALUMINA AND QUARTZ
Laser trepanning of a small diameter hole in titanium alloy: Temperature and stress fields
Trepanning of Al 2O 3 by electro-chemical discharge machining (ECDM) process using abrasive electrode with pulsed DC supply
Whirling Vibrations in Boring Trepanning Association Deep Hole Boring Process: Analytical and Experimental Investigations
Investigations into the effect of geometry of a trepanning tool on thrust and torque during drilling of GFRP composites
ELECTROLYTIC MACHINING PROCESS, APPLICATIONS, AND SPECIAL STUDY ON THE TREPANNING OF TEST SPECIMENS IN BUGEY TYPE FUEL ELEMENTS.