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。
2
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。
3
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.