Study of Left Ventricular Isovolume Relaxation Time and Doppler Spectrum of Pulmonary Vein in Coronary Heart Disease with Left Ventricular Systolic Dysfunction是什么意思_Study of Left Ventricular Isovolume Relaxation Time and Doppler Spectrum of Pulmonary Vein in Coronary Heart Disease with Left Ventricular Systolic Dysfunction在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句