| 释义 |
Definition of blue paper in English: blue papernoun 1Blue-coloured paper, typically used for packaging commercial goods, especially sugar; a sheet of this; now chiefly historical. 2A light-sensitive paper used for copying maps and plans, typically made by treating the paper with potassium ferricyanide and ferric ammonium citrate; compare "cyanotype" (now rare).
Origin Late 16th century; earliest use found in Richard Carew (1555–1620), antiquary and poet. Definition of blue paper in US English: blue papernoun 1Blue-coloured paper, typically used for packaging commercial goods, especially sugar; a sheet of this; now chiefly historical. 2A light-sensitive paper used for copying maps and plans, typically made by treating the paper with potassium ferricyanide and ferric ammonium citrate; compare "cyanotype" (now rare).
Origin Late 16th century; earliest use found in Richard Carew (1555–1620), antiquary and poet. |