Spirit duplication: A method of duplication. An aniline-dye carbon paper is placed against the paper master, typing or drawing is carried out at the back of the master so that the dye is transferred to the master forming reversed images.

• 酒精复印:复印方法之一。把纸板和一张涂有苯胺染料的碳纸放在一起,在纸版背面打字或绘画图形,使染料转移到版面,造成反像。