The system senses the positions of the fingers and, by calculating the surface area of a finger touching the screen, its relative pressure.

通过计算手指接触到屏幕的面积和相对的压力，这个系统能感应道手指的位置。

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It's easy for the beasts to overheat: they may face temperatures of up to 120 degrees Fahrenheit, and they don't have much skin surface area to radiate the heat relative to their big body volume.

野生动物总是很容易就身体过热：它们的体温可能超过120华氏摄氏度，而且能够辐射热量的皮肤表面积也不多。

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To decrease the relative errors, the pixel transform method was adopted to recover the geometrical feature of sphere fruit surface from projected image while the area of defect was calculated.

采用像素点变换法，实现了根据三维物体的二维投影图像恢复物体表面的真实几何面积的设想，大大降低了缺陷面积计算的误差；

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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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