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- radio frequency selectivity 射频选择性
- RF Radio Frequency Level Controller. RF系列射频导纳式物位控制器。
- Radio frequency and communication test equipment. 射频通信综合测试仪。
- Radio frequency circuit design II. 射频电路设计2。
- Vulnerable to radio frequency radiation interference. 易受射频辐射的干扰。
- Tuner will be able to track the frequency-hopping radio frequency. 调谐器可以追踪跳频无线电频率。
- Internal capacitors to suppress radio frequency interference. 内置抗电磁干扰电容。
- Transmission can be done by cable, radio frequency and satellite. 传递可通过海底电缆，无线电波和通信卫星来进行。
- The AGC technology in the radio frequency channel is also studied. 研究了射频信道中的自动增益控制(AGC)技术。
- Method of insertion loss measurement for radio frequency filters. 射频滤波器插入损耗的测量方法。
- Is rhinitis of cure of microtherm plasma radio frequency good? 低温等离子射频治疗鼻炎能好吗？
- 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）。
- We get finally a multilayered LTCC three-stage bandpass filter with a small size and high frequency selectivity. 通过上述场与路相结合的设计方法，获得了尺寸小、频率选择特性好的多层LTCC三级带通滤波器。
- It is characterized by good frequency selectivity, low insertion loss and high attenuation of specified frequency. 它具有频率选择性好，通带插损低，对陷波频点抑制较高的优点。
- A device for tuning,especially an electronic circuit or device used to select signals at a specific radio frequency for amplification and conversion to sound. 调节器，调谐器用来进行调节的装置，尤指一种电子电路或电子装置，用来选择某一特定发射频率的信号来放大并转换成声音。
- A device for tuning, especially an electronic circuit or device used to select signals at a specific radio frequency for amplification and conversion to sound. 调节器，调谐器用来进行调节的装置，尤指一种电子电路或电子装置，用来选择某一特定发射频率的信号来放大并转换成声音
- Increase in damping weakens the maximum impeding effect, but it widens the frequency band of im-Pedimellt and improves the frequency selectivity accordingly. 阻尼增加虽降低了最佳的阻抑效果，但抑制的频带宽了，改善了阻抑效果的频率选择性；
- Supporting hand-held devices, such as PDAs and radio frequency devices. 支持手持设备，例如pda和射频设备。
- Increase in damping weakens the maximum impeding effect, but it widens the frequency band of impediment and improves the frequency selectivity accordingly. 阻尼的增加虽降低了最佳的阻抑效果,但能够使抑制的频带变宽,改善了阻抑效果的频率选择性;
