短语词组短语electrogastrography Å 胃电描记法Electrogastrography system 胃电描记系统electrogastrography U 胃电描记法egg electrogastrography 胃电描记法electrogastrography of body surface 体表胃肌电multi -channel electrogastrography 胃电图 返回 electrogastrography