超突变结 abrupt junction: 突变点; 突变结, 阶跃结; 突变结,阶跃结abrupt junction diode: 突变结二极管abrupt transition junction: 突变结abrupt-junction diode: 突变结二极管abrupt-junction doubler: 突变结倍频器下载手机词典可随时随地查词查翻译