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The first stage involves growing a layer of real skin around a sample of the bulletproof skin, which takes about five weeks.

第一阶段的实验需要在防弹皮肤的样本周围培养出一层真正的皮肤，这需要大概五周的时间。

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But my fur and a thick layer of blubber make it so I don't need a real house.

但是我的皮毛和厚厚的脂肪层使得我可以这样，所以我并不需要一座真正的房子。

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To ensure the building looked like an old brownstone from the outside, Mr. Peterson took a thin layer of real brownstone and attached it to light aluminum honeycomb.

WSJ: Up and Down Brownstone

TechStars predicts these services will include the beginning of real competition in the PaaS layer and increasing innovation in development and deployment tool chain solutions.

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Real DVD also installs a new layer of digital-rights-management (DRM) code on files, blocking users from copying them more than five times to other computers.

FORBES: Magazine Article