Radio frequency

Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 7003300000000000000♠3 kHz to 7011300000000000000♠300 GHz, which include those frequencies used for communications or radar signals. RF usually refers to electrical rather than mechanical oscillations. However, mechanical RF systems do exist (see mechanical filter and RF MEMS).

单词	R.F.
释义	R.F. 原声例句科学60秒-科学美国人 2022年2月合集 The cells respond to other proteins called N and O-R-F, for instance. 例如，这些T细胞会对 N和O-R-F 蛋白质产生反应。英语百科 Radio frequency Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 7003300000000000000♠3 kHz to 7011300000000000000♠300 GHz, which include those frequencies used for communications or radar signals. RF usually refers to electrical rather than mechanical oscillations. However, mechanical RF systems do exist (see mechanical filter and RF MEMS).
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R.F.

Radio frequency