Assist with maintenance and repair of display systems, scoreboards and message displays.
协助维护与维修达科显示系统 、 记分牌和显示屏.
互联网
LED lighting was once relegated to basketball scoreboards, cellphone consoles, traffic lights and colored Christmas lights.
LED照明一度被贬到为篮球记分, 手机游戏机, 交通灯和彩色圣诞装饰灯.
互联网