The image shown demonstrates the effects of a severe chemical injury with early corneal neovascularization.

如图所示为严重化学伤后早期发生的角膜新生血管形成。

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Bleaching: (1) Chemical process on photographic materials, which converts the black metallic silver image into a colourless silver complex.

漂白：(1)照相材料的化学处理方法。它把黑色金属银粒的影像变成无色的银粒复合物。

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However in an effort to improve image quality, running costs and the environmental impact of toner all of the toner manufacturers have been investing hugely in Chemical or Polymerised toner.

然而，在努力提高图像质量，运行成本和环境影响的墨粉墨粉制造商都已经投入巨大的化学或聚合碳粉。

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This chemical will fix the painted image into the stone.

VOA: special.2009.09.02

However, instead of each pixel representing a colour, as in the image on a screen, these readings show all the different chemical compounds present in each of the thousands of tiny patches that together make up the sample.

ECONOMIST: Forensic technology