UC知道汉译英 高手进 我把最后的20分也给你们 谢谢了
来源：百度知道 编辑：UC知道 时间：2024/05/13 09:11:51
心电图能反映出兴奋在心脏内传播的过程及心脏的机能状态。如果心脏的传导系统发生障碍或某部分心肌发生病变，则心电图的波形将发生变化。因此心电图对某些心脏病特别是心律失常、心肌梗塞等的诊断有很大的价值，它是目前诊断心脏病的重要方法之一。但是由体表电极检测到的ECG信号具有较强的随机性和背景噪声，频带宽0.01-100Hz。其含有多种不同类型的干扰，主要有工频干扰（50Hz）、基线漂移（0.7Hz以下）、肌电干扰。而心电仪器某部分的故障也会导致心电图的失真。因此本文主要以心电图机为例，将其各部分可能导致的心电图失真进行探讨，最后研究出怎样设计才可以减少和避免失真的方案。
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Conductive performance because of the human body, electric potential change of heart can pass body surface to , put electrode can write down electric potential change , heart of activity in human surface proper position. The electrocardiogram is through changing the figure in the electric potential of putting the movable course of heart that the electrode writes down of body surface.
The electrocardiogram can reflect the function states of the course of spreading in the heart of excitement and heart . If the conducting of the heart happens systematically the pathological change take place in the obstacle or a part of cardiac muscle, then the wave form of the electrocardiogram will change. So the electrocardiogram has very great value to the diagnosis of some heart disease especially arrhythmia cordis , heart attack ,etc., it is one of the important methods to diagnose the heart disease at present. But it is from body surface electrode measure to ECG sig