| 单词 | 电频率 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Hertzian wave〕An electromagnetic wave, usually of radio frequency, produced by the oscillation of electricity in a conductor.赫兹波：一种电磁波，通常为无线电频率，由电在电导体内振荡而产生美国传统〔airwave〕The medium used for the transmission of radio and television signals. Often used in the plural.波段，无线电频率：传送无线电和电视信号的媒介。常用复数美国传统〔bandwidth〕The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies.带宽：电磁辐射频带中高频与低频之间的数值差，尤指某设定的无线电频率范围美国传统〔booster〕Electronics A radio-frequency amplifier.【电子学】 辅助放大器：一种无线电频率放大器美国传统〔galactic noise〕Radio-frequency radiation originating outside the solar system.银河噪声：产生于太阳系之外的无线电频率辐射美国传统〔radio wave〕An electromagnetic wave within the range of radio frequencies.无线电波：无线电频率范围内的电磁波美国传统〔radome〕A domelike shell transparent to radio-frequency radiation, used to house a radar antenna.雷达天线罩：有顶构造，可以让无线电频率辐射穿过，用于隐蔽雷达天线美国传统 |
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