background signal
英 [ˈbækɡraʊnd ˈsɪɡnəl]
美 [ˈbækɡraʊnd ˈsɪɡnəl]
本底信号, 背景信号
英英释义
noun
- extraneous signals that can be confused with the phenomenon to be observed or measured
- they got a bad connection and could hardly hear one another over the background signals