Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/a297d659f5722af7d62eed50160682da.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 signal-to-noise ratio英英字典_signal-to-noise ratio剑桥英语解释_signal-to-noise ratio柯林斯英文解释_淳朴汉英词典
1. N the ratio of one parameter, such as power of a wanted signal to the same parameter of the noise at a specified point in an electronic circuit, etc 信号噪声比