To draw lines, the etch a Sketch's stylus scrapes aluminum powder from the underside of a glassscreen.
在绘制线条的时候,需要用蚀刻素描笔刮去玻璃屏幕底部的铝粉。
3
It's distinctive but still tasteful, made of some kind of polycarbonate that feels somehow metallic, with curved sides and a 3.7-inch screen, the glass covering of which curves with them.