Value of pulmonary venous flow pattern and color Doppler flow mapping detected by transesophageal echocardiography in assessing the severity of mitral regurgitation是什么意思_Value of pulmonary venous flow pattern and color Doppler flow mapping detected by transesophageal echocardiography in assessing the severity of mitral regurgitation在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句