触控点 meaning in Chinese

pointing stick

Touch screens employ one of three physics principles for detecting the point of touch . pressing a resistive design with a finger or other stylus raises a voltage . in capacitive models a finger draws a minute current this method is often used for cursor pads on notebook computers in other designs a finger or stylus interrupts a standing pattern of acoustic waves or infrared lights that blanket the surface
触控荧幕可依其侦测触控点的物理原理，分为三种：电阻式荧幕，用手指或其他触头轻按就会产生电压电容式荧幕，手指会吸取微小的电流常用于笔记型电脑的触控板。