食管HBE属非创伤性，能逐个记录每个心搏周期中房室传导系统内各成分的动态改变。
Esophageal HBE is a new nontrau-matic technique, which can record the dynamic changes oi the various components of A-V conducting system of every cardiac cycle.
利用实验动物的数据，我们发现了心搏的运动既不是随机的也不是周期的；
We also found that the MI varied with changes of conditions. During anaesthesia, machine controlle…
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