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。

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

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(即，是否所有的内容都是免费的，或者对访问采取了限制措施；是否需要注册，等等)如果在访问网站时需要收费，与可以从其他途径得到的材料相比，其收费标准如何？

(e.g., is all content free or are there restrictions on access, is registration necessary, etc.) If there a charge to access the website, how does this fee compare to other available materials?

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昂贵的土地和原材料迫使丰田和本田采取了“准时制生产”的存货和质量管理体系。

Toyota and Honda took to "just-in-time" inventories and quality management because land and raw materials were expensive.

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