Each heartbeat can be broken into systole and diastole.

每次跳都可被分解为收缩和舒张。

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

血液充满舒张的室的这个期被称为舒张期。

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

棉花便是本地区的脉搏，植棉和摘棉便是这红土脏的舒张和收缩。

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

这种舒张-收缩动周期（舒张充盈，然后收缩射血）续约0。9秒，每分钟脏博动70－80次。

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

因此限制型肌病会导致力衰竭，且由于血液进入室发生在舒张期，所以我们说它是一种舒张期力衰竭。

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

然后在舒张末期，房收缩，使室充满更多血液。

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

当脏处于这种放松或舒张状，脏内的压力会很低。

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

主动脉逐渐扩张，这是主动脉瓣关闭不全的危险因素之一；这种情况下，舒张期血将反流至左室。

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的间间隔是室舒张充盈的候，称为舒张期。

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

注意，收缩期比舒张期短。

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

舒张末期室中的血液量称为舒张末期血容量。

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

舒张末期，室内充满许多血液，几乎充盈。

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是由于房室瓣的关闭导致的，发生在收缩早期；S2是由于主动脉瓣和肺动脉瓣的关闭导致的，发生在舒张早期。

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

这是当主动脉瓣关闭不全，血液在舒张期——充盈相反流至左室产生的。

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，在脏的舒张期（称为舒张期）中，脏的室会被动地充满血液。

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；让血液再次充盈室，这段期叫做脏舒张期。

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的健康状况。

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，室几乎充满血液，然后房收缩，室容积增加。

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，室迅速充盈，并且室内的压力开始随容积增加。

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关闭。