1.Each heartbeat can be broken into systole and diastole.

每次心跳都可被分解为收缩和舒张。

2.This part of the heartbeat, when blood is filling the relaxed ventricles is called diastole.

血液充满舒张心个时期被称为舒张期。

3.Cotton was the heartbeat of the section, the planting and the picking were the diastole and systole of the red earth.

棉花便是本地区脉搏，植棉和摘棉便是红土心脏舒张和收缩。

4.There are two phases of the heartbeat: diastole (relaxation) and systole (contraction).

种舒张-收缩心动周期（舒张充盈，然后收缩射血）续约0。9秒，每分钟心脏博动70－80次。

5.So restrictive cardiomyopathy causes heart failure, and since filling happens during diastole, we say this is a type of diastolic heart failure.

因此限制型心肌病会导致心力衰竭，且由于血液进入心发生在舒张期，所以我们说它是一种舒张期心力衰竭。

6.The aorta dilates over time, which is a risk for aortic valve insufficiency, where blood leaks back into the left ventricle during diastole.

主动脉张，是主动脉瓣关闭不全危险因素之一；种情况下，舒张期时血将反流至左心。

7.When the heart is in this state of relaxation, or diastole, the pressure within the heart is low.

当心脏处于种放松或舒张状态时，心脏内压力会很低。

8.It's interesting to note that systole is shorter than diastole.

注意，收缩期比舒张期短。

9.The interval between S2 and the next S1 is when the ventricles relax and are filled with blood, called diastole.

S2和下一个S1时间间隔是心舒张充盈时候，称为舒张期。

10.At the end of diastole, the ventricles have filled quite a bit and they're almost full.

舒张末期，心内充满许多血液，几乎充盈。

11.Then at the end of diastole, the atria contract, filling the ventricles even more.

然后在舒张末期，心房收缩，使心充满更多血液。

12.Near the end of diastole, the ventricles nearly fill with blood, and then the atria contract, adding even more volume to the ventricles.

在舒张末期，心几乎充满血液，然后心房收缩，心容积增加。

13.The volume of blood in the ventricles at the end of diastole is referred to as the end-diastolic volume.

舒张末期心中血液量称为舒张末期血容量。

14.S1, caused by the atrioventricular valves closing, at the beginning of systole, and S2, caused by the aortic and pulmonary valves closing, at the beginning of diastole.

S1是由于房瓣关闭导致，发生在收缩早期；S2是由于主动脉瓣和肺动脉瓣关闭导致，发生在舒张早期。

15.This is when the aortic valve does not closse properly, resulting in blood flowing back to the left ventricle during diastole- the filling phase.

是当主动脉瓣关闭不全时，血液在舒张期——充盈时相反流至左心产生。

16.Right after the S2 sound, the tricuspid and mitral valves open back up allowing blood to fill up the ventricles again and this period of time is called diastole.

在S2之后，三尖瓣和二尖瓣打开；让血液再次充盈心，段时期叫做心脏舒张期。

17.This pressure varies over the course of the cardiac cycle, increasing when blood is ejected from the heart(during systole), and decreasing as the heart relaxes(during diastole).

因血管内压力变化与心脏状况、动脉以及其它因素有关，测量血压并对其认真解读能指导护理和帮助评估一个人健康状况。

18.We previously learned that during the resting phase of the heart, known as diastole, the ventricles of the heart are passively filling with blood.

我们先前了解到，在心脏舒张期（称为舒张期）中，心脏心会被动地充满血液。

19.What we see as a result is that the ventricles rapidly fill during diastole, and pressure within the ventricles begins to rise, along with the volume.

因此，在舒张期，心迅速充盈，并且心内压力开始随容积增加。

20.Now, the " DUB" sound — and, just to be clear, I am not talking about dubstep sounds — that's the aortic and pulmonary semilunar valves closing at the start of diastole.

现在，“DUB”音——澄清一下，我不是在说 dubStep 音——是主动脉和肺半月瓣在舒张期开始时关闭。