Left atrium circumferential ablation surrounding the pulmonary veins and electrical isolation of left superior vena cava in the treament of paroxysmal atrial fibrillation是什么意思_Left atrium circumferential ablation surrounding the pulmonary veins and electrical isolation of left superior vena cava in the treament of paroxysmal atrial fibrillation在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句