A free floating metal ball shuttles according to the relativepressure at the two inlets.
内置自由浮动的金属球，可依照两个进口的压力情况自由滑动。
2
The system senses the positions of the fingers and, by calculating the surface area of a finger touching the screen, its relativepressure.
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。
3
If market returns fall, as the firm predicts, it will face pressure to cut its fees, which can be high relative to peers-sometimes strikingly so, given its economies of scale.