The basic concept behind high-definition television is actually not to increase the definition per unit area… but rather to increase the percentage of the visual field contained by the image.

高清晰度电视的基本概念实际上并不是提高每个单元域的清晰度，而更多是提高图像中包括的可视域的百分比。

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The result is a high-definition image, captured in strings of 0, 1, A, T, G, and C the bits of computer and biological code.

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But officials said the contrast agent given to them before their scans to enhance image definition was being treated as a possible cause.

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The app, released in several languages, allows users to scroll over a high-definition image of the shroud and find out more about its history and religious significance.

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