illuminating indicator
照明指标
以上为机器翻译结果，长、整句建议使用 人工翻译 。
LEDs have evolved from their start as the tiny indicator lights on devices like coffeemakers to illuminating cellphone screens and billboards in Times Square.
WSJ: The Math Changes on Bulbs
应用推荐
模块上移
模块下移
不移动