Quantitative Tissue Velocity Imaging for Evaluating the Effects of Different Atrioventricular Delay on the Left Ventricular Systolic Function in Patients with Dual-chamber Pacing是什么意思_Quantitative Tissue Velocity Imaging for Evaluating the Effects of Different Atrioventricular Delay on the Left Ventricular Systolic Function in Patients with Dual-chamber Pacing在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句