发光二极体, 光发射二极体 led light emitting diode: 发光二极管; 发光二极体led light-emitting diode: 发光二极管; 发光二级管led(light emitting diode: 光学二级管light emitting diode led: 发光二极管; 光发射二级管light emitting diode(led): 发光二极管下载手机词典可随时随地查词查翻译