A hologram is a special interference pattern created in a photosensitive medium (which can be as simple as a traditional photographic film).

全息图像采取了一种干涉模式，并需要利用一种光敏材料，它的原理可以简单的用传统摄影法来解释。

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Adoption of this pattern is a point-in-time decision depending on whether near or medium-term advantages justify the necessary investment.

这种模式的采用是一个即时的决策，这个决策依赖于近期或中期的利益来证明是否值得进行必要的投入。

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The Preferred Data Source Pattern works best when the data in multiple sources are relatively consistent, clean, and straightforward, and the returned result sets are small to medium.

当多个源中的数据是比较一致的、清晰的和简单易懂的，并且返回的结果集比较小的时候，首选数据源模式最为合适。

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"Japanese traditional houses have paper screens with mica paint which is a very subtle medium, giving a shiny appearance to recreate the pattern of the water, " she said.

BBC: Margaret Kerr unit in Melrose artworks taking shape