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。

youdao

For now, the system consists of six electromyography (EMG) sensors and two ground electrodes ringing the upper right forearm that sense finger movement in the right hand.

目前，这个系统使用六个肌电图(EMG)传感器和两条绕在右前臂上部的接地线来感知右手指的活动。

youdao

Even the slightest contact of your electron-rich finger with the screen's glass is enough to activate the capacitive sensing system below.

来自带电的手指表层最细微的接触也能激活屏幕下方的电容感应系统。

youdao

Glitches with a new finger-printing system meant that voting continued into Saturday in some parts of the country.

BBC: Ghana election: John Mahama declared winner

It said it had now found irregularities such as cases of over voting and instances when people not registered by the new biometric finger-printing system were able to vote.

BBC: Ghana election: NPP challenges John Mahama's victory

But she also pointed a finger at the planning system, which was not providing enough land for houses.

ECONOMIST: Most Britons want their own homes, and green spaces too