他在1793年就开始试验凝固光学图像。

He began experimenting to set optical images in 1793.

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保存历史版本（我们将在第17章中详细讨论）简单地复制整个文档，就像照相机快速将一幅图像在时间上凝固一样。

Versioning (as we'll discuss more in Chapter 17) simply makes a copy of the entire document the way a camera snapshot freezes an image in time.

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汉字却是 两维的 图像，以一个如画的图像凝固语音的语义，集音义形于一身。

Contrary to this, the Chinese word is two dimensional, capturing sounds and meanings in a picture-like image.

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