1.If an atrial cell outside of the SA node initiates a depolarization, it's called an atrial ectopic focus.

如果一个窦房结以外的心房细胞引发了一个除极，这个心房细胞被称为房性异位起搏点。

2.Moderation in your opinions, moderation in your principles, moderation in your convictions is not what depolarization is about.

你的观点，你的原则，你的信念，这不是去极化的意义所在。

3.An ECG tracing specifically shows how the depolarization wave during each heartbeat - which is a wave of positive charge.

心电图描记明确显示了除极波在每次心跳中是怎样运动的；除极波是一种电荷的波。

4.The result is a slower depolarization with a smaller amplitude.

结果，去极化速变慢，幅降低。

5.Making it easier to see exactly how the wave of depolarization moves through the heart.

让我们更清楚地看到，除极波是怎样流过心脏的。

6.It represents the brief interval of time between depolarization and repolarization.

表示去极化和复极之间的短暂时间间隔。

7.When that depolarization wave from an atrial ectopic focus gets to the AV node, there are a couple options.

当除极波从房性异位起搏点到达房室结，有许多选择可做。

8.Normally, the resting state of sodium channels is stabilized by calcium ions, which prevents them from spontaneously opening and potentially causing depolarization.

常情况下，钙离子用来稳定钠离子通道的静息状态，这可以防止钠离子通道自发打开，从而导致去极化。

9.In left atrial enlargement, depolarization of the left atrium lasts longer than normal.

左房扩大时，左房去极化持续时间比常长。

10.A reentrant loop basically starts sending out depolarization waves to the rest of the heart tissue each time the wave goes around.

每沿着折返环路环绕一圈，就开始向其余心肌组织发放除极波。

11.R wave is produced by depolarization of the main mass of the ventricles.

R波是由心室的主部分去极化产生的。

12.Similarly, each of the limb leads produces its own viewpoint of the depolarization wave as well.

同样地，每一个肢体导联也在用不同的角去记录除极波。

13.For example let's say that the depolarization happened this way - at an angle, then we'd break the vector into two parts.

比如，假设除极波是沿着如图方向进行的，成一个角，那么我们把向量分成两个部分。

14.Now, lead V1 on an ECG measures a depolarization wave that moves towards the right ventricle.

好，心电图的导联V1测量向右心室传导的除极波。

15.S wave represents the last phase of ventricular depolarization at the base of the heart.

S波代表心脏底部心室去极化的最后阶段。

16.The P wave represents the spread of the electrical impulse through the atria, and this is referred to as atrial depolarization.

P波代表电脉冲通过心房的传播，这被称为心房去极化。

17.The QRS complex represents depolarization of the ventricles which starts with the interventricular septum.

QRS波群代表心室从室间隔开始的去极化。

18.This happens because an abnormal contraction signal, called a depolarization, originates from somewhere in the ventricles rather than coming from the pacemaker cells.

这种情况的发生是因为一次异常的收缩信号，叫做去极化，源于心室某处，而非起搏细胞。

19.These can appear lots of different ways depending on where the two depolarization waves meet each other.

这会以许多不同方式出现，取决于两个除极波相遇的地点。

20.The QRS wave, which is sometimes called the QRS complex, represents the spread of the electrical impulse through the ventricles, or ventricular depolarization.

QRS波，有时被称为QRS波群，代表电脉冲通过心室的传播，或心室去极化。