The process is called Additive Layer Manufacturing, and it works somewhat like a 3-D printer.
这种加工工艺叫作加层制造法，其工作原理有些类似三维打印机。
2
Additive lamphouse: a printer lamphouse consisting of three light sources; one for each color record.
加色法灯箱：由三个光源组成的印片机上的光源。一个光源对应一个彩色记录。
3
Conventional printer characterisation models are generally based on the assumption that the densities of primary colours are additive. However, additivity failure frequently occurs in practice.