projection printing

基本解釋

Modern media of teaching mainly refers to the video media-the media of printing , slide, projection, video and computer.
現(xiàn)代教學媒體主要指的是視聽媒體，即印刷媒體、錄音媒體、幻燈媒體、投影媒體、錄像媒體、計算機媒體。
Plate projection system: A plat exposure system which works by projecting the image from microfilm or compact roll film rather than by the same-size one-to-one contact printing of films.
投影制版系統(tǒng)：用微攝菲林或小型卷筒菲林內(nèi)的影像投射于印版上的曬版系統(tǒng)，有別于用原大菲林和接觸曬印的方法。