头轻 meaning in English

lightheadness
nose lightness

From matching racquets to increasing overall weight , increasing torsional stability , raising the racquet ' s sweetspot or counter - balancing a head - heavy racquet to make it head - light - all levels of players are finding benefit in customizing their racquets ' weight and balance
从职业比赛中选手用的球拍可以看出，他们自己对球拍的改造，提高了球拍重量，从而提高了球拍的击球稳定性，增大了甜点区域或者使一个头重的球拍变为头轻的球拍? ?所有级别的选手都是通过自己改造球拍的重量和平衡而在比赛中受益的。
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。