您要查找的是不是：
- An electronic device that converts one frequency of a radio signal to another. 变频器将无线电讯号从一种频率转换成另一种频率的电子装置
- Stay on one frequency and keep on calling. 在一个频率上坚持地呼叫（换句话说就是不要轻易扫地?）
- Internal capacitors to suppress radio frequency interference. 内置抗电磁干扰电容。
- The rings resonate at more than one frequency each. 这些环状物各自有不同的振动频率。
- Radiated EMI is also called radio frequency interference (RFI). 辐射引起的电磁干扰，也称为射频干扰（RFI）。
- All ALE personnel were on one frequency (1-E). 所有机场执法人员都在统一通话频率上(1-E)。
- The multi-beam receiver is also uniquely suited for resolving one of the nagging problems of modern radio-telescopy: screening out radio frequency interference (RFI). 多波束接收器也是唯一适合解决现代射电望远镜的一个通病：滤掉电波干扰。
- RFI (Radio Frequency Interference) and EMI are often used interchangeably. EMI也常常称为RFI（射频干扰）。
- one frequency interference 同频干扰
- Improve compatible analysis and test of frequency usage so as to prevent frequency interference. 加强频率使用的兼容分析和测试，避免干扰。
- Telecommunication for converting a signal from one frequency to another. 把信号的一种频率转换为另一种频率的电讯装置。
- Light that is of one frequency,with the waves in step is called coherent light. 单频率且波同步的光叫相干光。
- Caution occasional fluctuation of R/W 31 localizer course due to radio frequency interference. 注意31号跑道航道有时摆动应有无线电干扰。
- The radio frequency interference on CH VOR causing momentary flag indication and out of tolerance course fluctuation. ch VOR有无线电干扰，注意有时出现故障旗和摆动大。
- Random Single Radar has the properties of LPT, ARFI (anti-radio frequency interference) and good EMC. 噪声雷达具有低截获，抗干扰能力和电磁兼容性好的特点。
- Laser-produced light is different from incoherent light. It is essentially of one frequency. 激光器产生的光与非相干光不同，它实质上只有一个频率。
- Radio frequency interference (RFI) suppression is a key technique in the ultrawideband synthetic aperture radar (UWB-SAR). 射频干扰(RFI)抑制技术是超宽带合成孔径雷达(UWB-SAR)的关键技术之一。
- Light that is of one frequency, with the waves in step is called coherent light. 单频率且波同步的光叫相干光。
- Radio Frequency Interference (RFI) plays an important role on the quality of Ultra-Wide Band Synthetic Aperture Radar (UWB-SAR) imaging. 有效的射频干扰(RFI)抑制技术是超宽带合成孔径雷达(UWB-SAR)成像质量的重要保证。
- During the experimental test of the VDCS, high frequency interference, MOSFET protection and predrive circuit design were the key issues. 在多功能驱动电路系统实验调试中，重点讨论了高频干扰问题、MOS管的高压保护和预驱动电路设计。
