دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a special type of fixed-head bit that has synthetic diamond cutters that do not disintegrate at high temperatures. Compare polycrystalline diamond compact.

n: The polycrystalline diamond bit that using thermally stable diamond cutter as cutting element.

abbr: thennally stable polycrystalline. See thermally stable polycrystalline diamond bit.