S/N [计] 信号噪声比 释义与例句 n. 1. Abbreviation of signal-to-noise ratio. 2. Initialism of serial number. 词汇关系 名词 同义词 2 signal-to-noise signal-to-noise ratio 上位词 1 ratio 相关短语 S/N ratio signal-to-noise ratio [计] 信噪比