1) countdown
[英]['kaʊntdaʊn] [美]['kaunt'daun]
未答讯号比值
2) S/N [signal noise ratio]
讯号杂音比
3) Signal-to-Noise Ratio
讯号对杂音比
4) satio of mixing signal
信号比值
5) It is not every question that deserves an answer.
一问未必值得一答
补充资料:答答战
1.犹言心惊胆战。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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