[化] 发光二极管 led light-emitting diodes: 发光二极管light emitting diodes: 发光二极管led (= light emitting diode)led: 发光二极体led light emitting deivce: 发光辐射器,发光器件; 发光器件led light emitting diode: 发光二极管; 发光二极体下载手机词典可随时随地查词查翻译