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- Since the carrier is suppressed, this phase and frequency reference is required for synchronous demodulation of the color information in the receiver. 由于载波收到抑制，因此需要这个相位和频率参考来对接收机的颜色信息进行同步解调。
- With appropriate selection of the data rate and under normal SNR conditions, the degradation of tracking performance is quite small, and the effect of frequency refer ence instability can be ignored. 通过合理选择数据速率，以及在正常的再生伪码测距信噪比条件下，跟踪性能损失很小，同时频率参考源不稳定的影响可以忽略。
- power frequency reference voltage 工频参考电压
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Frequency Referenced Scanning Beam 频率基准扫描波束
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- What is the reference frequency or range of reference frequency? 参考时钟频率多少?
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
- As she moved up in frequency, her ascension began. 当她频率增加时，她的提升也就开始。
- Fast frequency hopping avoids interference. 快速跳频避免干扰。
