1895年，威廉·伦琴偶然发现阴极射线管能使涂有一层氰亚铂酸盐钡的薄相纸发光，甚至当阴极射线管和相纸分别放在不同的房间时也能发光。
In 1895, Wilhelm Roentgen accidentally discovered that a cathode-ray tube could make a sheet of paper coated with barium platinocyanide glow, even when the tube and the paper were in separate rooms.
经过硒调色图片的颜色和色调变化在不同的相纸上有不同的表现：从冷调褐色、到紫褐色，有着很细微、可辨别差别。
The colour and degree of tonal changes achieved will vary according to the type of paper: ranging from cool chocolate-brown, through purplish brown, to little discernable change.
这种相纸含有分层涂布的、反差不同的一层感蓝卤化银涂层和一层感蓝绿的涂层。
The paper has a blue sensitive silver halide layer and a blue-green sensitive layer coated separately, and having different contrasts.
胶片全部采用明胶和一些高品质的相纸。
Photography All Photographic film uses gelatine and some high quality photo papers.
本文扼要介绍了多反差黑白照相纸的结构和性能特点。
This paper presents an outline on the structure and properties of multi-contrast black-and-white photographic paper.
本文扼要介绍了多反差黑白照相纸的结构和性能特点。
This paper presents an outline on the structure and properties of multi-contrast black-and-white photographic paper.
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