It comes with a built-in high resolution web camera protected with a sapphire crystal surface.

它配备一个蓝宝石水晶镜面保护的内置高分辨率摄像头。

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The morphology of as-grown crystal surface was investigated by optical microscopy.

用光学显微镜观察了晶体生长面的原生形貌。

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The density of crystal defects in the region near the crystal surface is greater than that in the center.

晶体的靠近表面的区域缺陷较密集，中心部分较少。

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They then heated the crystal for 24 hours to up to 2, 700 degrees Fahrenheit--a process that forces the crystal surface to reorganize itself into a sawtooth pattern at three-nanometer intervals (at that breadth, 30, 000 such jagged edges side by side would be as wide as one human hair).

FORBES: Nanotech

The researchers then spray the crystal's surface with a specially designed polymer dissolved in a hydrocarbon-based solvent.

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This signal causes the surface of the crystal to undulate.

ECONOMIST: MONITOR