etchings 문장 EN
- 문장 etching
- He donated an etching from his own collection to the new art gallery.
- Hot acid etching has been attempted to achieve microinterlocking and improve the bond between resin and Y-TZP. This includes etching with HCl/Fe 2 Cl 3 solution at 100°C, HF acid at 100°C, and nitric acid or sulfuric acid [8 ].
- Even though no obvious staining was observed in our case, contact with the vapor was still found to perform very faint etching at a submicrometric scale.
- a powderless etching