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etching test of a metal surface to accentuate gross structural details, such as grain flow, porosity, or cracks (see: macroetching), söövituskatse metallipinna jämestruktuuri (nt terade voolamise, segregatsiooni, praogude) väljatoomiseks(vt makrosöövitus)
macroetching test . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/macroetching%20test/1/eng (26.07.2026)