| 释义 |
cupro-|kjuːprəʊ|
before a vowel also cupr-, used as combining form of L. cuprum copper, in Chem. and Min., as cuprammonium, cupro-sulphate; cuproˈmagnesite, a hydrous sulphate of copper and magnesium (Dana, 1875); ˌcupro-ˈnickel, an alloy of copper and nickel; cupro-ˈplumbite, a native sulphide of copper and lead (Dana, 1850); cuproˈscheelite, native tungstate of copper and calcium; cupro-ˈtungstite, native tungstate of copper (Dana, 1875); etc.
1905Kynoch Jrnl. Jan.–Mar. 18 The bullet is sheathed with a cupro-nickel envelope. 1922Encycl. Brit. XXX. 135/2 This jacket is made from cupro-nickel which..contains from 80% to 85% copper and from 15% to 20% nickel. 1948M. Laski Tory Heaven xii. 172 A golden sovereign..changed into four cupro-nickel half-crowns. 1962Metal Industry CI. 102/1 The term cupro-nickel is now more widely applied to any copper-nickel alloy containing less than about 50 per cent of nickel. |