The normal electrocardiograms ( ECGs ) from 24 leads including standard limb leads augmented unipolar limb leads unipolar chest leads and apex base lead ( A B ) of 90 healthy police dogs were traced and analysed .

描记了90只警犬标准肢导联、 加压 单极肢 导联、单极胸导联、A－B导联等共24个导联的心电图。

Three unipolar limb leads are conventionally employed in clinical electrocardiography .

有三个 单极的肢体 导联习惯上用于临床心电图。

Motor task consisted of self-paced repetitive simple movements of the upper limbs . Three unipolar limb leads are conventionally employed in clinical electrocardiography .

运动任务采用自主频率的简单上肢运动。有三个 单极的肢体 导联习惯上用于临床心电图。

The QRS voltage of dominant wave of BCL ( except CM2 ) was higher than that of unipolar chest leads ( P < 0.05 ) .

QRS主波电压（除CM2外）BCL比 常规 单极胸 导联高（P<0.05）。

In addition differences between two kinds of unipolar chest leads were also discussed .

此外，还分析了两种 单极胸 导联法的差异。