用信号叠加技术减少电图的噪声干扰。
Noise of electro-grams was reduced using signal averaging technique.
视频字符的显示原理是将字符点阵信号与原始视频信号叠加。
The principle of displaying a video character is that a character dot matrix signal is superimposed upon an original video signal.
目的：探讨无创性经食管信号叠加直接记录窦房结电位（SNP）的技术。
Objective To explore a noninvasive transesophageal signal averaging technique for direct recording of sinus node potential (SNP).
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