The system senses the positions of the fingers and, by calculating the surfacearea 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。
2
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 surfacearea to radiate the heat relative to their big body volume.
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.