Comprehensive display three-dimensional scene, spatial analysis, mass surface features model management, three-dimensional perspective control are commonly used to design visualization software.

三维场景综合显示、空间分析、海量地物模型管理、三维视点控制是三维可视化软件设计常用的技术。

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To compare alien planets, Dr. Mendez at the Planetary Habitability Laboratory and his colleagues are creating an Earth Similarity Index that ranks worlds by their resemblance to our own planet, on a scale from zero to one, based on their mass, radius, density and surface temperature.

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One reason for this change is that a tiny thing has a large surface area relative to its mass.

ECONOMIST: The risk in nanotechnology

And, at this point, the tiny, dry insulin particles had such a large surface area relative to their mass that, like popcorn or flour, they poured unevenly, leaving air pockets and inconsistent doses.

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