Phonocardiogram exercise testing (PCGET) is a method through applying a phonocardiograph to evaluate cardiac contractility and the cardiac reserve.

为了验PCGET法的可信度,作者进行了该心音图运试验中的信噪比分析。

In this paper, the importance of the interference filter's monochromatism for realizing high singal-to-noise ratio and its application in the biochemical instruments,are described in detail.

详细论述了干涉滤光片的单色性实现高信噪比的重要性以及它在化仪中的应用。