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度去记录除极波。

There are 6 limb leads and 6 chest leads.

有6个肢体导联和6个胸导联。

Leads aVR, aVL, and aVF, or " augmented limb leads" , are UNIpolar.

aVR，aVL，和aVF导联，或“加压肢体导联”，是单极的。

Now, all the limb leads and chest leads can be grouped based on the regions of the heart that they are nearest.

所有的肢体导联和胸导联可以根据它们距离心脏最近的区域来进行分组。

Cardiac axis can be determined by examining the 6 limb leads, which look at the heart from different angles in a vertical plane.

心脏轴可以通过检查6个肢体导联来确定，这些导联在垂直面上从不同角度观察心脏。

Now, in addition to these three limb leads, there are also bipolar limb leads called lead I, II, and III, which are recorded using two electrodes instead of just one.

同时，除了这三个单极肢体导联，还有3个双极肢体导联，分别称为I导联、II导联和III导联，它们是用两个电极而非一个电极来记录的。

Elevation of more than two small squares in the chest leads or one small square in the limb leads, indicates the possibility of myocardial infarction.

胸导联＞2个小方格抬高或肢体导联＞1个小方格抬高，提示可能心肌梗死。

So, in total you've got 6 leads from the limb leads, 6 from the chest leads, leading to a grand total of 12, which gives you your 12-lead ECG.

所以，我们有6个肢体导联，加上6个胸导联，总共12个导联，这就是我们的“12导联心电图”。

The 6 limb leads look at the heart in a vertical plane and are obtained from three electrodes attached to the right arm, left arm, and left leg.

这6个肢体导联以垂直平面观察心脏，从连接到右臂、左臂和左腿的三个电极获得。