Fourthheartsound correlated with damage of left ventricular function and compliance.
第四心音与左室功能损害及室壁的顺应性差有关。
2
Do you want to know the heart of the dirty is a polyphone, it read a fourth is the first sound.
你要知道心脏的脏是个多音字，它读第四声也读第一声。
3
The clinical experiments have indicated that the first and second heartsound can be almost acquired by the microphone, but it is difficult for the third and fourth, w…