The left ventricular ejection fraction (EF), peak filling rate (PFR) and septal regional EF were measured from ERNA.是什么意思_The left ventricular ejection fraction (EF), peak filling rate (PFR) and septal regional EF were measured from ERNA.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句