engraving steel造句

• His onyx ( soft ) cameos were engraved steel tip, while his cameos on shells and semi-precious hard stones ( pietre dure ), were engraved with a diamond-dust lathe.
• After a hand-engraved steel image of a note is complete, it is subjected to an intense heat that hardens the steel so that it can no longer be engraved on.
• The engraved steel arm made by Wilkinson Sword in London, was sent to Shaw by his uncle, George Robert Russell, in June 1863, to commemorate Shaw's promotion to the rank of regiment colonel.
• As described in an 1890 treatise, electrotyping produces " an exact facsimile of any object having an irregular surface, whether it be an engraved steel-or copper-plate, a wood-cut, or a form of set-up type, to be used for printing; or a medal, medallion, statue, bust, or even a natural object, for art purposes . " In art, several important " metal casting.