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.
投影制版系统：用微摄菲林或小型卷筒菲林内的影像投射于印版上的晒版系统，有别于用原大菲林和接触晒印的方法。
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.
投影制版系统：用微摄菲林或小型卷筒菲林内的影像投射于印版上的晒版系统，有别于用原大菲林和接触晒印的方法。
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