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a three-sided pyramid with angle between the centerline and the three faces 65.3o, used at Martens hardness test (see: Martens hardness), kolmetahuline tahu kaldenurgaga 65,3o teemantpüramiid, mida kasutatakse Martensi kõvaduskatsel (vt Martensi kõvadus)
Berkovish indenter . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/Berkovish%20indenter/1/eng (02.08.2026)
