Objective:To study the heart rate variability(HRV) and blood pressure variability(BPV) in patients with different grades of hypertension.是什么意思_Objective:To study the heart rate variability(HRV) and blood pressure variability(BPV) in patients with different grades of hypertension.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句