Each heartbeat can be broken into systole and diastole.

每次心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.

血液充满舒张的心室的这个时期被称为舒张期。

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心脏的舒张和收缩。

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

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

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

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.

当心脏处于这种放松或舒张状态时，心脏内的压力会很低。

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，舒张期时血将反流至左心室。

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的时间间隔是心室舒张充盈的时候，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。