photographic film

photographic film

n. 照相软片

例句与用法：

The preparation of manuscript for printing by the projection of images of type characters on photographic film, which is then used to make printing plates.

照相排版(法)通过在摄影卷上投射各种类型符号的影像来准备用于印刷的手稿，然后用其来制作印板

A range of values or conditions, especially the range of exposures over which a photographic film yields usable images.

安全曝光的时限价值或情况的范围，尤指曝光范围，在此期限内摄影用的底片能产生可用的影象